Pub. L. 83-179, tit. VI, sec. 609

Sec. 609. Appropriations for the military departments available for procurement or manufacture of supplies, equipment, and materials shall hereafter be available for the purchase or other acquisition of fa) copyrights, letters patent, applications for letters patent, (b) licenses under copyrights, under letters patent, and under applications for letters patent, and (c) designs, processes, and manufacturing data; and shall also be available for the purchase or other acquisition of releases, before suit is brought, for past infringement of letters patent, Any such purchase or other acquisition shall pertain to supplies, equipment, materials, or processes produced or used by or for, or useful to, the department concerned.