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Questions tagged [patent-lifetime]

The term of a patent: the amount of time during which a patent can be enforced.

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Can you file a continuation immediately after filing an application?

If I have a disclosure that lacks unity of invention, I believe that I can file an application, wait for a restriction requirement, elect one set of claims and then file a divisional with the second ...
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1answer
174 views

When exactly Patent No. US 7,716,161 B2 expire?

Can someone tell me when exactly Patent No. US 7,716,161 B2 expire? It's File on Dec. 6, 2002
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1answer
67 views

Since this patent is expired, can anyone in the world freely manufacture this and sell for proffit?

The patent US 5782079 A is filed on February 1997. So it's been more than 20 years since it first patented. So this means this patent is no longer protected by the patent. So, can this be manufactured ...
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Is patent US 5881419 A still active?

In reference to the patent: US5881419 Is this patent still active?
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249 views

What is time to give reply to advisory action if it is received after 3 months of Final Office Action mailing date

Advisory action is issued by USPTO if reply to final office action is within 2 months from mailing date of final office action and also reply time to Final Office Action including Advisory is 3 months ...
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1answer
45 views

Is this patent enforceable?

In reference to the patent: US6667877 Google says the fees are lapsed on this patent. IS this still enforceable?
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1answer
73 views

Is US2463439 still active?

Sandwich Grill I want to know if the patent of this product is still active, or is it available? US2463439
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1answer
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Validity and Standing

In reference to the patent: US6405939 How long is this Patent standing and valid for?
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1answer
44 views

What happens if you improve/alter your invention after it has been successfully patented?

Say I patent my invention and 2 years later I have a huge breakthrough that drastically improves the overall design (like putting wings on a tiger). Would the patent still stand, would it need to be ...
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1answer
93 views

When does this patent expire?

I thought patents expired a max of 15 years after publication date. Why does it seem like this patent still has until US Copyright Law expires (75 years)? In reference to the patent: US2717437
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1answer
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Is this patent on a rudder innertube still valid?

In reference to the patent: US6182594 Is this patent still valid ? Jeff
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1answer
38 views

Why is there so much confusion about the expiry of this patent?

I am referring to this patent for a locking mechanism for a folding knife. This Reddit discussion seems to imply that there is some confusion about whether the patent has expired or not. Why are ...
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1answer
150 views

is this expired now? open for using freely?

In reference to the patent: US5803725
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Does the Lawn Aerator Shoes hold patent? I am trying to sell lawn aerator shoes and would like to check if it has any patent

My business is trying to sell Lawn Aerator shoes, and I would like to know if this item holds any patent. I have searched on google patent, and found some patent information. However, I would like to ...
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109 views

How are patents managed internationally?

I have recently read about patents and am in a confusion on how these patents are handled internationally? Which is the foremost authority on patents? And at last how much time on an average does it ...
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2answers
103 views

Validity of patent

In reference to the patent: US5565264 Till which year is the patent valid?
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221 views

patent life of a PCT application and royality thereof

In a scenario where: a. NP (of invention "1001") is first filed in a foreign country (non-US Country, on 1 Jan 2017) and then a PCT is filed(on 31 Dec 2017), when will patent life begin for invention ...
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1answer
40 views

understanding timeline of new elements to be filed in NP

I have a patent application filed for a provisional somewhere last year, say, on March 01 2016. This provisional application had an element A which when placed on one area of element B resulted in ...
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1answer
30 views

When should a person file a PCT? How can I find out which countries a PCT covers?

When should a person file a PCT? How can I find out which countries a PCT covers? How much does it cost?
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2answers
198 views

Who sold and who purchased patent #4131769

I am the inventor of patent 4131769. When I lost my home in 1990,my patent certificate was left behind. I didn't know my patent number until 2007, when I found my patent the Internet. I've been trying ...
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1answer
118 views

When does the patent on the CPR manikin (US4984987) expire?

When does the patent US4984987 expire? Does the CE Approved CPR and AED Training device infringe this patent?
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1answer
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William A Clark extended expansive bit patents

William A. Clark had patents 20,192 (May 11, 1858), 21,597 (Sept, 28, 1858). He ran his factory from then to the civil war (1861 to 1865). After the war he restarted the factory and his bits are ...
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2answers
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Original Patent document

In reference to the patent: US925691 Dear Sirs, The gentleman referenced as the inventor, and holder of this patent, is my Great Grandfather - Glyndon Abraham Freer. I have a copy of the original ...
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2answers
153 views

When do the patents on RC6 (U.S. Patent 5,724,428 and U.S. Patent 5,835,600) expire?

I have found that the two patents placed on the RC6 algorithm are U.S. Patent 5,724,428 and U.S. Patent 5,835,600, but I'm having trouble determining the earliest date at which they will have both ...
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1answer
56 views

What copyright or patent infringements could I step into by remaking an old game?

There is a very old game from Westwood Studios currently owned by Electronic Arts I'd like to remake, but I don't know if I can turn it into a business due to the related copyrights and possible ...
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0answers
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Is US patent 1816592 still active? Can I repatent it? [duplicate]

Is the patent US1816592 “Means to recuperate the atmospheric moisture” still active? How can I find out whether this patent is still active? Is it possible to repatent this invention?
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2answers
461 views

How do I re-patent a product similar to one that's had its patent expire?

In reference to the patent: US5809590 It appears as though this patent is expired, and I wish to re-patent a similar product. How do I go about doing this?
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1answer
46 views

Assigning Patents To Different People For Same Device For Over 100 Years, US 8567565 B2

Chain lubricating apparatus and method US 8567565 B2 This appears to be the same idea repackaged by different individuals for over 100 years. Is this a common practice? Also can BKC renew the ...
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1answer
58 views

Has patent US 5,195,917 A expired?

Can anyone tell me if this patent has expired or how I can find out if it has? US 5,195,917 A tear apart stress relief doll. How long is a patent good for, is it the same for every patented item/...
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3answers
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How often are patents terminally disclaimed?

How many patents have terminal disclaimers (i.e., truncation in their time to expiry)? I am looking for a percentage of the total population of patents granted. A rough estimate + source is good ...
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1answer
49 views

When do the rights granted by a design patent vest in the USA?

Do they vest once the design patent is granted or do they go back to some period earlier (retroactive)? I’m asking specifically about design patents.
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1answer
68 views

Patent Expiration

In reference to the patent: US 5,858,064 I think this patent has expired based on the priority date of August 22, 1995. Is that correct?
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1answer
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When will patent US 6,797,357 expire?

In reference to patent US 6,797,357, "Three dimensional structures useful as cleaning sheets", when will it expire?
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0answers
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Is this Patent still in effect? [duplicate]

Is this patent still in effect? Is it expired? In reference to the patent: US1119732
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1answer
1k views

Filing, CIP, Con, PCT, Priority, etc and Expiration Date

I was wondering if someone would kindly help me figure out how to determine the expiration dates for a patent family, and which and how each is still in effect and until when. (I don't have any patent ...
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0answers
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Patent status information [duplicate]

In reference to the patent: US3731965 Is this patent current or expired? If expired is it public domain or can I patent it? If it is current where can I find this item for purchase?
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When a patent goes into Lapse status in European countries can it be renewed later?

When a patent goes into Lapse status in European countries can it be renewed later? What are the different status a patent can have that make it enforceable at present or in the future?
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1answer
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Why is there no requirement that a foreign entity manufactures / licenses and / or offer to sell in a territory?

Just wondering why there is no requirement for foreign entities seeking to patent an idea / technology in a territory be obliged to manufacture, license and / or offer to sell a product based on the ...
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1answer
43 views

How do we reinstate our patent US 5,341,526

I am the owner of patent US 5,341,526. Our mother was the original inventor and was going to pay the maintenance fees, but never did. So, we were told that we lost the patent. Could you please tell ...
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1answer
2k views

Provisional Patent in Europe

I want to see if an idea can work in the European market, but I want to protect it. Can I fill a provisional patent application in Europe, and then if the idea does not work just disregard the patent ...
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1answer
214 views

Timelines for patenting

I would like to know about timelines for patents. How long does it take to patent a product and how do I start the process? At what stage of the patenting process can I start showing my product ...
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0answers
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Patent US 5803317 [duplicate]

In reference to the patent: US5803317 When does this patent expire?
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1answer
56 views

Approval and expiry date

Has patent EP2298800A1 been approved and if so, what is the expiry date?
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0answers
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expiring date of the US 6905424 B2 [duplicate]

When does US Patent 6,905,424 expire?
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0answers
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Are the enclosed patents still valid?

Are those patents still valid: US7774976 US2009000183 US7774976 Also cited under: DE10259651 (as we know, it expired due to no-payment, so how can above patents be applied for or granted?)
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2answers
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Is this patent still valid? Aircraft trash compactor and box US 4620479 A

Is US4620479 patent number still valid or can this product be manufactured free on the open market?
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4answers
9k views

How can you renew an expired patent?

I've been researching on how to renew an expired patent, and all I get for results are maintenance fees for patents filed on or after December 12th 1980. I am hoping someone would have an idea or an ...
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1answer
72 views

Who has the rights this patent?

My grandfather is the inventor. My late father and his son told me my grandfather sold the patent, but I don't see that someone else holds it. Could you tell me more about it?