What is the purpose of the “Combination-Type” references in CPC classification?
The “Combination-Type” references in CPC classification serve a specific purpose in patent examination. According to MPEP 905.03(b): “Combination-Type” references list subgroups that, when combined with the subgroup in question, should be considered to determine if a further classification is necessary. These references help examiners identify potential additional classifications for inventions that combine multiple elements or…
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