Granted Patent
Utility
US 4,501,787 · App. 06/490,098
Flame retardant B-staged epoxy resin prepregs and laminates made therefrom
Inventors:
Joseph R. Marchetti, Wilbur R. Thomas
Patented Case
View Patent ↗
Granted: Feb 26, 1985
Filed: Apr 29, 1983
Inventors
Joseph R. Marchetti
Wilbur R. Thomas
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.