Granted Patent
Utility
US 5,264,297 · App. 07/866,079
Physical vapor deposition of titanium nitride on a nonconductive substrate
Inventors:
Prem C. Jindal, Dennis T. Quinto
Patented Case
View Patent ↗
Granted: Nov 23, 1993
Filed: Apr 1, 1992
Inventors
Prem C. Jindal
Dennis T. Quinto
Assignee (at issue)
KENNAMETAL 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.