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....