Granted Patent
Utility
US 5,081,076 · App. 07/604,294
Low liquidus, stable heavy metal fluoride glass compositions
Inventor:
Charles F. Rapp
Patented Case
View Patent ↗
Granted: Jan 14, 1992
Filed: Oct 29, 1990
Inventor
Charles F. Rapp
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.