Granted Patent
Utility
US 4,812,372 · App. 07/147,963
Refractory metal substrate and coatings therefor
Inventor:
Subhash S. Kithany
Patented Case
View Patent ↗
Granted: Mar 14, 1989
Filed: Jan 25, 1988
Inventor
Subhash S. Kithany
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.