Index of code of federal regulations toggle navigation about us overview leadership resources and education. Chapter i united states patent and trademark office department of commerce subchapters a c chapter ii us copyright office library of congress subchapters a b chapter iii copyright royalty board library of congress subchapters a e chapter iv national institute of standards . Patent and trademark office 111 files open to the public 112 assignment records open to public inspection 113 copies and certified copies 114 patent applications preserved in confidence 115 requests for identifiable records fees and payment of money 116 national application filing fees 117 patent application and reexamination. Title 37 patents trademarks and copyrights title 37 patents trademarks and copyrights electronic code of federal regulations e cfr. 11 addresses for non trademark correspondence with the united states patent and trademark office a in general except as provided in paragraphs a3i a3ii and d1 of this section all correspondence intended for the united states patent and trademark office must be addressed to either director of the united states patent and trademark office po box 1450 alexandria
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