Granted Patent
Utility
US 6,146,697 · App. 09/261,001
MT CVD process
Inventor:
Kenneth E. Undercoffer
Patented Case
View Patent ↗
Granted: Nov 14, 2000
Filed: Mar 2, 1999
Inventor
Kenneth E. Undercoffer
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.