Can directional arrows be added or reversed in patent drawings without applicant’s annotated sheets?
Yes, adding or reversing directional arrows in patent drawings is one of the changes that can be made without requiring annotated sheets from the applicant. According to MPEP 608.02(w): As a guide to the examiner, the following corrections are illustrative of those that may be suggested without requiring annotated sheets from the applicant: … (D)…
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