Granted Patent
Utility
US 4,477,512 · App. 06/490,061
Flexibilized flame retardant B-staged epoxy resin prepregs and composite laminates made therefrom
Inventors:
Wilbur R. Thomas, Fred E. Hickman, III, George J. Knight
Patented Case
View Patent ↗
Granted: Oct 16, 1984
Filed: Apr 29, 1983
Inventors
Wilbur R. Thomas
Fred E. Hickman, III
George J. Knight
Assignee (at issue)
Westinghouse Electric Company LLC
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.