Granted Patent
Utility
US 4,200,565 · App. 05/937,831
Coupling agents for thermoset resin composites
Inventor:
Francis C. Naughton
Patented Case
View Patent ↗
Granted: Apr 29, 1980
Filed: Aug 29, 1978
Inventor
Francis C. Naughton
Assignee (at issue)
NL Industries, Inc.
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.