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@patently is mostly correct! The patent office is first to file, however there have been changes to the law which change the legal practices of the patent office. This is especially important as the patent office takes a long time to get to things. The first to file ammendment came about from the AIA ( America Invents Act) in Sept 2011, which made a ...


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No and none. And mailing something to yourself was never worth anything. Under the previous U.S. patent law (anything filed before that portion of the AIA took effect in March 16, 2013), one could win a dispute with someone who filed earlier than you filed by showing you conceived of the invention before the other person and diligently went about reducing ...


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There are a couple of things to understand here: A patent is kind of an exchange between the public and the inventor. The basic legal theory is the inventor agrees to share their very special knowledge with the public (as soon as possible) in exchange for a the public granting a limited 20-year exclusive right to use, market, and sell products and services ...


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