37 CFR Topic
General Information and Correspondence
November 5, 2020
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1.1
Addresses for non-trademark correspondence with the United States Patent and Trademark Office
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1.2
Business to be transacted in writing
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1.3
Business to be conducted with decorum and courtesy
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1.4
Nature of correspondence and signature requirements
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1.5
Identification of patent, patent application, or patent-related proceeding
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1.6
Receipt of correspondence
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1.7
Times for taking action; Expiration on Saturday, Sunday or Federal holiday
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1.8
Certificate of mailing or transmission
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1.9
Definitions
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1.10
Filing of correspondence by Priority Mail Express®
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