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Category Archives: proximate function
Searching the USPC: Proximate Function
For novice patent searchers one of the most difficult concepts in the U.S. Patent Classification system is the idea that inventions can be classified on the basis of “proximate function.” Proximate function is one of four schemes in the USPC … Continue reading
Posted in A.C. Gilbert, Erector Set, proximate function, USPC
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