Granted Patent
Utility
US 4,895,765 · App. 06/905,510
Titanium nitride and zirconium nitride coating compositions, coated articles and methods of manufacture
Inventors:
Jiinjen Albert Sue, Harden H. Troue
Patented Case
View Patent ↗
Granted: Jan 23, 1990
Filed: Sep 10, 1986
Inventors
Jiinjen Albert Sue
Harden H. Troue
Assignee (at issue)
Union Carbide 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.