48 CFR · Federal Acquisition Regulations System
§ 252.227-7000 — Non-estoppel.
eCFR · current through Aug 7, 2026
252.227-7000 Non-estoppel.
As prescribed at 227.7009-1, insert the following clause in patent releases, license agreements, and assignments:
Non-Estoppel (OCT 1966)
The Government reserves the right at any time to contest the enforceability, validity, scope of, or the title to any patent or patent application herein licensed without waiving or forfeiting any right under this contract.
(End of clause)
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Nearby Sections
11
§ 252.226-7001
Utilization of Indian Organizations, Indian-Owned Economic Enterprises, and Native Hawaiian Small Business Concerns.§ 252.226-7002
Representation for Demonstration Project for Contractors Employing Persons with Disabilities.§ 252.226-7003
Drug-Free Work Force.§ 252.227-7000
Non-estoppel.§ 252.227-7001
Release of past infringement.§ 252.227-7002
Readjustment of payments.§ 252.227-7003
Termination.§ 252.227-7004
License grant.§ 252.227-7005
License term.