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9 views

Is the product described by US 972,371 possible to buy? [on hold]

In reference to the patent: US 972,371 Is it possible to find a deck of these playing cards today?
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1answer
12 views

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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1answer
41 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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2answers
27 views

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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1answer
33 views

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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0answers
18 views

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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1answer
72 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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0answers
10 views

Is US6129050 still active? [duplicate]

In reference to the patent: US6129050 Is this patent still active, and if so, what countries is it active in?
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0answers
35 views

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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1answer
43 views

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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2answers
173 views

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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4answers
608 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
37 views

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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2answers
55 views

Is this patent expired?

Is the USD388287 S patent expired? I am looking to design something similar to this.
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1answer
66 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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2answers
4k 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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3answers
6k 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 ...