Granted Patent
Utility
US 5,209,979 · App. 07/466,215
Silicon carbide coated article with ceramic topcoat
Inventors:
William E. Moehle, Leonard M. Niebylski
Patented Case
View Patent ↗
Granted: May 11, 1993
Filed: Jan 17, 1990
Inventors
William E. Moehle
Leonard M. Niebylski
Assignee (at issue)
Ethyl 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.