Granted Patent
Utility
US 6,069,103 · App. 08/933,716
LTD resistant, high strength zirconia ceramic
Inventor:
Oh-Hun Kwon
Patented Case
View Patent ↗
Granted: May 30, 2000
Filed: Sep 19, 1997
Inventor
Oh-Hun Kwon
Assignee (at issue)
Saint-Gobain/Norton Industrial Ceramics 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.