What is the significance of “efficacy” in determining prior art operability for patent examinations?

Source: FAQ (MPEP-Based)BlueIron Update: 2024-09-30 10 Rules5 Related FAQs This page is an FAQ based on guidance from the Manual of Patent Examining Procedure. It is provided as guidance, with links to the ground truth sources. This is information only: it is not legal advice. In patent examinations, the “efficacy” of a prior art reference…

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