How should I address correspondence for ex parte reexamination requests?
For ex parte reexamination requests filed under 35 U.S.C. 302 and subsequent correspondence, the MPEP provides specific addressing instructions:
For mail sent via U.S. Postal Service:
- Mail Stop “Ex Parte Reexam”
- Attn: Central Reexamination Unit
- Commissioner for Patents
- P.O. Box 1450
- Alexandria, VA 22313-1450
For hand-carried or delivery service submissions:
- Customer Service Window
- Randolph Building
- 401 Dulany Street
- Alexandria, VA 22314
The MPEP states: “It is strongly recommended that the Mail Stop information be placed in a prominent position on the first page of each paper being filed utilizing a sufficiently large font size that will direct attention to it.”
To learn more:
Topics:
MPEP 2200 - Citation Of Prior Art And Ex Parte Reexamination Of Patents,
MPEP 2224 - Correspondence,
Patent Law,
Patent Procedure