Granted Patent
Utility
US 4,918,157 · App. 07/250,838
Thermosetting composition comprising cyanate ester, urea compound and epoxy resin
Inventors:
Hugh C. Gardner, Richard H. Newman-Evans
Patented Case
View Patent ↗
Granted: Apr 17, 1990
Filed: Sep 28, 1988
Inventors
Hugh C. Gardner
Richard H. Newman-Evans
Assignee (at issue)
Amoco 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.