Granted Patent
Utility
US 4,517,321 · App. 06/496,504
Preimpregnated reinforcements and high strength composites therefrom
Inventors:
Hugh C. Gardner, Michael J. Michno, Jr., George L. Brode
Patented Case
View Patent ↗
Granted: May 14, 1985
Filed: May 20, 1983
Inventors
Hugh C. Gardner
Michael J. Michno, Jr.
George L. Brode
Assignee (at issue)
Union Carbide Corporation
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.