Questions tagged [expired]

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-1
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1answer
32 views

is the 21+3 blackjack side wager patent still active for Galaxy gaming

Is the 21+3 blackjack side bet patent expired. It is a variation of three card poker using the players first two cards and the dealers up card
2
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1answer
2k views

What does it mean if a patent's status is expired and grant?

I am looking to add a product to my online business but want to make sure I am not infringing any patents. Dog shoes have so many styles it is very confusing. Please see below: Date App/Pub Number ...
0
votes
1answer
17 views

purchase or license a prior invention [duplicate]

How do I go about either purchasing or licensing an invention that has an abandoned PPA? If the inventor is already selling said invention but never filed a patent, only a PPA, which expired 4 years ...
3
votes
2answers
80 views

US20140312193A1 Is this an expired PPA or a non provisional patent?

I invented a similar idea years ago but never sold it or disclosed it publicly. ALthough I thought about patenting it in 2013 and could not find any anything similar at the time, I just didn't have ...
1
vote
1answer
33 views

Patent valid or expired?

In reference to the patent: US4146939 I don't know much about patents and I can't figure out what the status is on this patent. I'm working on a new invention that attaches to this patent[US4146939]. ...
0
votes
1answer
15 views

An expired patent, medical process using different ingredients to use in a medical procedure. I have been taught this and want to use it on my own

The process , or recipe, was patented 40 years ago and is still in use today at a few centers in and out of the US who still pay the Dr royalties. The patent has expired and the Dr/scientist who ...
0
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2answers
40 views

A question regarding the patent term

If the filing date of this patent is on Jun 14, 1994, the patent should have expired on June 14, 2014. Is this right? Also, what is the significance of knowing the assignment of this EXPIRED patent on ...
0
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2answers
89 views

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.
0
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1answer
47 views

Obtaining Design Patent on expired similar design patent

I have designed and manufactured a sport goggle similar, but not identical to expired (or non-renewed) patent 4176410. My goggles have a different style, configuration (pointed edges vs squared), ...
1
vote
1answer
492 views

WO and PCT patents do they have different jurisdictions?

WO and PCT patents do they have different jurisdictions ? If the WO patent has expired, can the PCT patent still be valid? If the PTC patent has expired, can the WO patent still be valid? WO ...
3
votes
2answers
398 views

Failure to pay maintenance fees

If an inventor submits an idea and it has been accepted, and he makes no tangible device (it remains intellectual rather than carried out). But then the inventor does not pay the maintenance fees, ...
2
votes
1answer
49 views

My patent expired before I successfully marketed it, can I successfully market it?

My patent expired some years back. I was not knowledgeable as to how to market it back then. Could I create a new version of it and patent that? I know I could easily market it, as is, on Youtube now. ...