7 votes
Accepted

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

Let us consider a sample patent family lifecycle, beginning in 2009. 1 Jan 2009: Provisional application PROV1 is filed. A provisional doesn't really have a term, since it never becomes a patent. ...
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  • 6,103
5 votes

Patent listed as expired followed by an expiration date

The short answer is that it is expired for failure to pay a maintenance fee. The long answer is that Google makes a estimated expiration (their Adjusted expiration) when an application grants to a ...
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4 votes
Accepted

Is it always okay to market a product that was patented 20+ years ago?

Is this always true? No. While the basic rule is that a US patent has a term of 20 years from its filing date (assuming all the renewal fees were paid), there are (at least) two ways in which the ...
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  • 6,103
4 votes

Can a patent filed more than 20 years ago still be valid?

The term of a patent is 20 years from the filing date. The legal status of the patent will be "expired" in the case of a patent filed in 1991,. This is because the term of the patent has been more ...
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2 votes

Can a patent filed more than 20 years ago still be valid?

This patent has expired. There's no record because the USPTO doesn't change expired patents' statuses, but it definitely is. Since it was before 1995, it would either have expired after 17 or 20 ...
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2 votes

Is an expired patent in the public domain?

It is important to remember that a patent does not give anybody the right to do what the patent covers. For example, if I had a patent on a more effective delivery system for MDMA or LSD, having a ...
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  • 653
2 votes

Is an expired patent in the public domain?

If you're sure that the patent has really expired, then the specific invention in the patent is no longer patent-protected, so the patent holder can't sue over it. However, make sure of this, because ...
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  • 41
2 votes

Copyright expiration

Copyright is not applicable, so I am assuming you mean "enforceable". The patent in question has a Filing Date of May 20, 1959, a grant date of April 25, 1961, and is a continuation from an ...
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  • 1,735
2 votes

Replicating Tandy TRS-80 model 100 notebook computer for-profit

There is no patent protecting the process of putting hardware in another company's case and selling it, but you will almost certainly be violating someone's trademark. Trade dress is a legal term ...
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2 votes

My grandfathers patent, expired?

This patent has been expired since 1927, and since then it has been freely available for anyone to manufacture and sell. If by "claim", you mean a patent model (miniature model of the invention), ...
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  • 1,735
2 votes

Can a patent filed more than 20 years ago still be valid?

The patent has already expired since it is more than 20 years. And once a patent term has ended it is not renewable. But just because a patent has expired doesn't mean it is already a public domain. ...
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2 votes
Accepted

Does this mean that the patent has expired, or has it been "un-expired" and now has an adjusted expiration?

To get to the bottom of almost any issue with a U.S. patent go to Public PAIR. The site is fussy about the format of the application number or publication number you enter. I see the expiration due to ...
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  • 25.4k
1 vote

When does patent US512340 A expire?

This patent was issued January 9th of 1894. Back then, I believe US patents lasted for 17 years from their grant date so it should have expired January 9th of 1911 (more than 100 years ago). Since ...
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  • 9,074
1 vote

Publication #: WO2014118527A1

Per the following link, this international application was denied entry into the European and German patent offices: https://worldwide.espacenet.com/publicationDetails/inpadoc?CC=WO&NR=...
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1 vote

Expired Patent?

Am I in the clear to manufacture this product? Not necessarily. Even if the marked patent is expired, there may be other patents (or designs) that are pending and in force, which would cover the ...
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  • 6,103
1 vote

Expiration date from patent EP1228987 & DE60206307

European patents expire 20 years from their filling date. In your case filling date is 30.01.2002. Interestingly, there is a small discrepancy across the contracting states of the European Patent ...
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1 vote

question about patent expiration

This is a tricky question since the patent laws changed that year look it up here by patent number: http://portal.uspto.gov/pair/PublicPair and learn about how long patents last here: http://www....
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1 vote

Is patent US 5,504,055 expired?

For applications file prior to June 8th, 1995, the patent term is either 17 years from the issue date or 20 years from the filing date of the earliest U.S. or international (PCT) application to which ...
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  • 9,074
1 vote

Has patent US 5,195,917 A expired?

Since the patent was filed prior to June 8, 1995, it should receive the maximum of either 20 years from the filing date May 20, 1992 or 17 years from grant date Mar 23, 1993. Based on this, it should ...
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1 vote

Patent Expiration

Yes, that is correct. This patent expired on August 22, 2015. The earliest document in the claims of domestic benefit is Serial Number 518,020, with a filing date of August 22, 1995: Continuation ...
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  • 1,735
1 vote

Is US 6,608,366 B1 in the public domain?

No, US 6,608,366 B1 and the continuation patent US 7,183,630 B1 (from the same application) are not in the public domain. I double-checked the Public Pair records to verify. Both of these patents are ...
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  • 1,735
1 vote

Status of US 6,151,713

If you look at the "Fee Status", you will see that it is "Lapsed". This means that the patent is no longer enforceable. The reason for this is found at the bottom of the Google Patents page, in the ...
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  • 1,735
1 vote

Grant of patent US 5,095,151? Not OB listed?

Yes, the patent was granted. It expired on March 10, 2009. It was subject to the pre-June 8, 1995 rules, which means that its term is at least 17 years after its issue date.
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  • 1,735
1 vote
Accepted

Do divisional, continuation, and continuation-in-part affect expiration dates for patents filed prior to June 8, 1995?

Everything you are looking for is in Section 2701. Any prior application the grant is based on, whether it was a continuation, divisional, or continuation-in-part is taken into account for the ...
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  • 312
1 vote

When will patent US 6,797,357 expire?

The patent was filed on June 14, 2001, which normally means (because it was filed after June 8, 1995), that the patent is enforceable to 20 years from the filing date, which is June 14, 2021. However,...
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  • 1,735
1 vote
Accepted

Would expired patents for Moissanite reduce jewelry prices?

In most cases Patent expiry does not mean that things will get cheaper. Owner of IP doesnot reduce the price on its own it happens due to market pressure via competitor. if more number of players ...
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  • 2,075
1 vote

Expiry Date of a European patent

According European Patent convention expiry of European patent if it is not withdrawn, abandoned, revoked or lapsed is 20 year from filing date; it can be extended by contracting state; Article 63[ ...
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  • 2,075
1 vote

Patent issued in 2005 and now is ceased/expired due to failure to pay maintenance fees

Your Query contains Two Issues:- 1. Can Any person revive Patent after not paying Maintenance fees? YES but in certain circumstances and not after 2 years. For more information see Failure to pay ...
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  • 2,075
1 vote

Patent issued in USA only, infringing patent issued in Germany

Patents do not infringe patents. To infringe a patent someone needs to actually make, sell, use or import something that falls under the wording of a claim in a patent that was issued by the country ...
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  • 25.4k

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