37 CFR 1.499: Unity of invention during the national stage

Taken from the Ninth Edition of the MPEP, Revision 10.2019, Last Revised in June 2020

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1.499    Unity of invention during the national stage.

If the examiner finds that a national stage application lacks unity of invention under § 1.475, the examiner may in an Office action require the applicant in the response to that action to elect the invention to which the claims shall be restricted. Such requirement may be made before any action on the merits but may be made at any time before the final action at the discretion of the examiner. Review of any such requirement is provided under §§ 1.143 and 1.144.

[Added 52 FR 20052, May 28, 1987, effective July 1, 1987; amended, 58 FR 4335, Jan. 14, 1993, effective May 1, 1993]