Granted Patent
Utility
US 4,950,558 · App. 07/250,980
Oxidation resistant high temperature thermal cycling resistant coatings on silicon-based substrates and process for the production thereof
Inventor:
Vinod K. Sarin
Patented Case
View Patent ↗
Granted: Aug 21, 1990
Filed: Sep 23, 1988
Inventor
Vinod K. Sarin
Assignee (at issue)
GTE Laboratories Incorporated
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.