Question about Patents and what happens when they expire

[cejela]

Question about Patents and what happens when they expire

by cejela » Sun Jun 01, 2008 9:07 pm

cejela

Yellow Belt

 

Posts: 74

Joined: Thu Mar 13, 2008 2:00 pm

Location: Austin TX

• YIM

I have been doing some patent searches on some ideas and have found old ones that have run out. When they expire, can someone with a new twist but close to that invention patent it again?

Also I have read in some blogs over my head about provisional patents and the word non provisonal patent. . What is the difference between these 2 titles?

I have 2 PPA's ... does the provisional patent mean that?

sorry to sound so stupic...but if you don't ask....

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