Code of Federal Regulations Title 37. Patents, Trademarks, and Copyrights § 37.2.65 Abandonment

(1) If all refusals and/or requirements are expressly limited to certain goods and/or services, the application will be abandoned only as to those goods and/or services.

(2) When a timely response by the applicant is a bona fide attempt to advance the examination of the application and is a substantially complete response to the examining attorney's action, but consideration of some matter or compliance with a requirement has been omitted, the examining attorney may grant the applicant thirty days, or to the end of the response period set forth in the action to which the substantially complete response was submitted, whichever is longer, to explain and supply the omission before the examining attorney considers the question of abandonment.