Are there any subject matter restrictions for claiming priority based on inventor’s certificates?
Yes, there can be subject matter restrictions when claiming priority based on inventor’s certificates. The MPEP 213.05 states: Certain countries which grant both patents and inventor’s certificates issue only inventor’s certificates on certain subject matter, generally pharmaceuticals, foodstuffs, and cosmetics. This means that for certain types of inventions, some countries may only offer inventor’s certificates…
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