Granted Patent
Utility
US 4,765,817 · App. 06/827,136
Corrosion resistant cobalt-base alloy containing hafnium
Inventor:
David J. Gaul
Patented Case
View Patent ↗
Granted: Aug 23, 1988
Filed: Feb 7, 1986
Inventor
David J. Gaul
Assignee (at issue)
Owens-Corning Fiberglas Corp.
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.