What are the statutory provisions prohibiting the introduction of new matter?

There are two primary statutory provisions that prohibit the introduction of new matter in patent applications: 35 U.S.C. 132: This provision states that “no amendment shall introduce new matter into the disclosure of the invention.” 35 U.S.C. 251: This provision applies specifically to reissue applications and states that “no new matter shall be introduced into…

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Why is it important to verify that a patent has not expired before examining a reissue application?

Verifying that a patent has not expired is crucial before examining a reissue application for the following reasons: Legal Authority: Once a patent has expired, the Director of the USPTO no longer has the authority to reissue the patent under 35 U.S.C. 251. Validity of Reissue: An expired patent cannot be reissued, making any reissue…

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