Granted Patent
Utility
US 5,908,796 · App. 09/071,095
Dense silicon nitride ceramic having fine grained titanium carbide
Inventors:
Vimal K. Pujari, William T. Collins
Patented Case
View Patent ↗
Granted: Jun 1, 1999
Filed: May 1, 1998
Inventors
Vimal K. Pujari
William T. Collins
Assignee (at issue)
Saint-Gobain Industrial Ceramics, 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.