What are Issue Classification Notations in patent examination?
Issue Classification Notations are symbols applied to patent documents to categorize and organize them based on their subject matter. According to MPEP 1302.10, these notations are applied on the Issue Classification sheet and are based on the Cooperative Patent Classification (CPC) system.
The MPEP states: The Issue Classification sheet is automatically populated with the Cooperative Patent Classification symbols applied to a family of documents (continuations, divisionals, and/or foreign documents in the family).
This means that the classification is not limited to a single document but applies to related patent applications as well.
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