Manual of Patent Examining Procedure - MPEP
1300 Allowance and Issue
1302.03 Notice of Allowability
A Notice of Allowability form PTOL-37 is used whenever an application has been placed in condition for allowance. The date of any communication and/or interview which resulted in the allowance should be included in the notice.
In all instances, both before and after final rejection, in which an application is placed in condition for allowance, applicant should be notified promptly of allowability of the claims by a Notice of Allowability PTOL-37. If delays in processing the Notice of Allowability are expected, e.g., because an extensive examiner's amendment must be entered, and the end of a statutory period for reply is near, the examiner should notify applicant by way of an interview that the application has been placed in condition for allowance, and an Interview Summary PTO-413 should be mailed. Prompt notice to applicant is important because it may avoid an unnecessary appeal and act as a safeguard against a holding of abandonment.
