Chapter 0500
Receipt and Handling of Mail and Papers
501
Depositing Correspondence
503
Application Number and Filing Receipt
504
Assignment Number and Filing Receipt
505
Date of Receipt Stamp
506
Completeness of Original Application
507
Drawing Review in the Office of Patent Application Processing
508
Distribution
509
Payment of Fees
510
U.S. Patent and Trademark Office Business Hours
511
Postal Service Interruptions and Emergencies
512
Certificate of Mailing or Transmission
513
Deposit as Priority Mail Express with US Postal Service