48 CFR · Federal Acquisition Regulations System
§ 252.227-7000 — Non-estoppel.
48 CFR § 252.227-7000
TitleTitle 48: Federal Acquisition Regulations SystemPartPart 252: Solicitation Provisions and Contract Clauses
SourceeCFR (current through Apr 2, 2026)
This text of 48 C.F.R. § 252.227-7000 (Non-estoppel.) is published on Counsel Stack Legal Research, covering United States primary law. Counsel Stack provides free access to over 12 million legal documents including statutes, case law, regulations, and constitutions.
Bluebook
48 C.F.R. § 252.227-7000 (2026).
Text
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.Cite This Page — Counsel Stack
Bluebook (online)
48 C.F.R. § 252.227-7000, Counsel Stack Legal Research, https://law.counselstack.com/cfr/48/252/252.227-7000.