Can an examiner reject a patent application after it has been allowed?
Yes, an examiner can reject a patent application after it has been allowed. The MPEP 1308.01 states:
“The examiner may withdraw the application from issue because of:
- An amendment under 37 CFR 1.312;
- A printer rush;
- A mistake on the part of the Office;
- A violation of 37 CFR 1.56 or illegality in the application;
- Unpatentability of one or more claims; or
- For interference.”
This demonstrates that even after allowance, various circumstances may lead to a rejection or withdrawal from issue.
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