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For questions relating to the USPTO rules related to prior art or what constitute prior art. For REQUESTS FOR PRIOR ART please use the [prior-art-request] tag.

2 votes
2 answers
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Does a patent on an invention which does not work (but granted as if it does) count as inval...

Suppose Alice (a fictional name for this example) comes up with an novel invention idea for a machine to do very useful work, but which requires as part of the larger machine a component perpetual mot …
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