- 501-Filing Papers With the U.S. Patent and Trademark Office
- 502-Depositing Correspondence
- 503-Application Number and Filing Receipt
- 504-Assignment of Application for Examination
- 505-“Office Date” Stamp of Receipt
- 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 Express Mail with U.S. Postal Service
