first all provisional patent applications (PPAs) are separate, you cannot add to or alter them once filed, each one would give you a year to file a utility patent to that subject matter.
after a year the PPA just disappears. If you wantto claim the benefit of a PPA when you file a utility patent then you must refer to it, and obviously it must be pending to have effect, if 12months have passed then there is no PPA to claim the benefit of.
you can still file your patent, but you don't get the filing date of the PPA
the 2nd question relates to the on-sale and public disclosure bars to patentability.....practically speaking it would only come up if there was litigation regarding your patent, even then there might not be any evidence of it....but if there is an the other side gets it (you would be required to provide all documents etc during discovery) then your patent would be invalidated and you could even face penalties for filing a patent despite the bar
Hello to you Alex. First, I want to tell you that I feel extremely guilty about not being able to pay you what you are clearly worth. But I am in debt and have no choice but to seek 'mercy'. I understand your answers. Thank you. Just to double check on this one aspect: I file a PP on a feature. I file again on basically the same feature but with improvements and additions on it. No one has filed anything close in the interim. Am I bound by the first filing date to file within a year?
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