Granted Patent
Utility
US 4,746,480 · App. 06/895,420
Process for providing a protective oxide coating on ceramic fibers
Inventor:
Terence J. Clark
Patented Case
View Patent ↗
Granted: May 24, 1988
Filed: Aug 11, 1986
Inventor
Terence J. Clark
Assignee (at issue)
Hoechst Celanese 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.