Questions tagged [date-of-invention]
The date-of-invention tag has no usage guidance.
4
questions
1
vote
1answer
44 views
Can someone patent an invention post-hoc
If an invention has already reached market, can the technology be patented by the inventor(s)? Is there a threshold of time post-hoc or just not possible?
1
vote
1answer
208 views
If someone else invents and patents a design 5 years after you've been selling the same design
can they make you stop selling your own invention? Can they make you pay them licensing fees for something you designed way before they did?
I designed a unique baby outfit in 2008 and started selling ...
7
votes
1answer
1k views
How many priority numbers can a patent have?
When I search patents at espacenet.com I see that some patent documents have multiple priority numbers. For example WO2010054132 has 4 priority numbers. (see bibliographic data). What does this mean? ...
12
votes
3answers
588 views
Should I file a provisional application?
In the past I've been discouraged from filing provisional applications (in the US), but the new "first to file" provisions of the "America Invents Act" would seem to make a provisional application a ...
