Granted Patent
Utility
US 4,970,097 · App. 07/324,528
Method for forming abrasion resistant coating on fibrous glass substrate
Inventor:
Marie R. Kalinowski
Patented Case
View Patent ↗
Granted: Nov 13, 1990
Filed: Mar 16, 1989
Inventor
Marie R. Kalinowski
Assignee (at issue)
Owens-Corning Fiberglas Corp.
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.