Questions tagged [expired-patent]

For questions involving expired patents.

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Expired Patent US1704999A

My great grandfather held a patent that was created in 1929. I know the patent is expired, is it possible that the patent was passed on to somebody?
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Why Aren't Patent Expirations Listed for USPTO Gazette Vol. 1454 No. 2?

Reviewing 300+ issues of the Official Gazette Of The United States Patent And Trademark Office, from 2014 to present I noticed that only one issue — Vol. 1454 No. 2, from September 11th, 2018 — ...
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Too late to renew my Patent?

My patent was due for renewal Dec 2019, year 8. Is there any way I can resurrect it? Thanks in anticipation. Pat.
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Using an expired patent as part of a new patent

I have an idea for a product which has not been patented and is rather unique. However, my design would include a hook and loop fastener. Since Velcro's patent on this has expired, am I allowed to use ...
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Can fee related expired patent be renewed?

Does this mean patent is expired and I can manufacture the apparatus? can former patent owner renew it and how would it affect my production? 2014-04-08 Anticipated expiration 2019-10-31 ...
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Is it safe to sell a patented product that is expired due to fee and the anticipated expiration of the patent is in 2 years from now

I came across a product that I want to sell but when I found its patent through Google Patents, it says that the patent was canceled in 2015 because of no annual fee payment. Now my concern is; can ...
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No opposition filed within time limit

what do think about patents no. EP0529765A1 and no. EP0529766A1 ? The status both is: "No opposition filed within time limit" (Status updated on 18.07.1997). Does it means the patents expired ? Thanks ...
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If a patent expire can someone else repatent it?

I came up with an idea to solve a major problem but Theres was already a patent out. But it was patented back in the 40s and have since expired. But i see similar patents which are newer. I am not to ...
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What is the time limit for reviving an expired patent?

We have patent #5,853,128 which was applied for on Mar. 8, 1997 and issued on Dec. 29, 1998. We missed paying the final maintenance fee and have not tried to get it reissued before now. How long do ...
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Expired Patent can we apply for a new patent with similar idea

If a Patent has expired due to non-payment of fees and is almost 30 years old, can we apply for a similar patent (not a copy) as we have a similar idea.
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Is this a current patent: CA2277698A1

My question is CA2277698A1 a patent or only a application for a patent?
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Is patent US 4,734,658 A avalible free of change in commercial products? [closed]

In reference to the patent: US 4,734,658 A We are from India, we wish to use this patent in one of our products. Can we use this patent free of charge or we have to pay some amount?
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Is there any value to this patent?

The inventor of US 1,808,692 A was my Grandfather. I recently discovered this patent online, so I am curious about it.
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US 2,038,852 A (April 1936) - Who was the manufacturer?

US 2,038,852 A This is a kitchen sink strainer system. How do I find out the manufacturer or supplier of this patent or find out if the product is still manufactured?
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1 vote
1 answer
416 views

What is the priority date of US 4,851,616 A?

What is the correct priority date of US 4,851,616 A, and what are the legal ramifications if an inventor deliberately misrepresents the priority date based on an error in the patent? Please provide ...
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Is it possible to re-assign Patent US 4,023,765 A?

In reference to the patent: US 4,023,765 A I am the youngest daughter of James R. Kinnamon, the original owner of this patent. My father passed away in 1998. He gave me the legal documentation of the ...
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1 answer
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My grandfathers patent, expired?

In reference to the patent: US 948,162 A I'm wondering if this patent has expired, and the process to claim it? This is my great-grandfathers invention.
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2 votes
1 answer
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Information regarding my father’s invention?

In reference to patent: US 2,768,768 A My late father, Vern L. Boven, is shown on this patent for the caulking gun from 1953. Does this mean that he was the inventor? If so, did he receive any ...
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1 answer
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Error in patent, involving confusion of bacterial names

In reference to the patent: US 4,210,672 The abstract contains the phrase: Yogurt is prepared with a mixture of milk powder and novel Lactobacillus thermophilus (also known as Bacillus coagulans) ...
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1 answer
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Copyright expiration

In reference to the patent: US 2,981,578 I would like to know if the copy rights of this item are still in their period of validity.
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3 votes
1 answer
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Patent specification

In reference to the patent: US 2,738,257 Has the patent been granted for the complete method or for the compound mixture?
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2 votes
3 answers
625 views

there a patent on my idea but it is expired how do I get the rights?

I came up with an idea and after getting it submitted to a patent agent. I found that something similar had been submitted in 1998. I was told by my agent that there is nothing I can do as far as ...
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3 votes
2 answers
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What happens after a provisional patent expires?

I was thinking about applying for a provisional patent and seeking funding for to build my prototyped design on a larger scale. Should funding fall through or there's not much of a market interest, ...
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1 answer
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Has this patent expired in Canada but not in the US? [US5,662,332]

I am quite interested in trading card games and as a result the patent that Wizards of the Coast holds on the subject interests me. Since it's been about 20 years since the original trading card game (...
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0 answers
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Expiration of patent 5,580,417 as well as technology used in tensioning cap in Figure 5

My first question has to do with patent #5,580,417. I believe this patent is expired, but are there any other patents in force using the same technology? My second question is in regards to the ...
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2 votes
1 answer
147 views

Possible to file for a patent, despite super broad, expired patent already existing?

I was looking to patent an invention I feel to have novelty, but I came across this one pre-existing US patent while doing some research. It was filed over 20 years ago and has since "lapsed". ...
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Elevator driven by flat belt in EU

I am currently doing some research about elevators driven by flat belts. There seem to be a few patents regarding the use of flat belts for elevator suspension means. I found patents US8157058and ...
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is this patent ep1020784a2 expired?

I am doing patent search first time and struggling to establish if ep1020784a2 patent is withdrawn or expired? would appreciate feedback from anyone experienced out there. regards Kamesh
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Parent patent expired due to non-payment - are issued continuations still valid?

US patent 5938197 shows that it is expired due to non-payment (according to the search here: http://portal.uspto.gov/pair/PublicPair ). This patent has several children/continuations. Does the fact ...
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4 answers
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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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Patent No. USD513117 S1--Is this still a valid patent? [duplicate]

I'm trying to find out if this Patent No. USD513117 S1 is still valid. How can I find out for sure?
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2 answers
173 views

Is this patent expired? [duplicate]

Is the USD388287 S patent expired? I am looking to design something similar to this.
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4 votes
1 answer
169 views

How to get rights to lapsed Patent?

Patent US 5,240,307 is for a invention that my father created. And I see that the patent has lapsed due to non-payment of fees. I was wondering how someone can go about obtaining the patent.
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6 votes
3 answers
21k views

Is an expired patent in the public domain?

From what I've been reading about US patents, once a patent has expired, it enters the public domain and can be freely used. The patent I was looking at was filed on 1/1999 and published in 10/2000. ...
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9 votes
3 answers
22k views

What is a "Lapsed Patent" and which concepts (if any) may still be protected by this Patent?

US 6,148,942 "Infant stroller safely propelled by DC electronic motor" According to Google Patents, US 6,148,942 is Lapsed and according to Public PAIR its status is Expired as of 2008. Google ...
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