Granted Patent
Utility
US 4,450,197 · App. 06/368,074
Polytetrafluoroethylene-impregnated bundles of sized glass fibers
Inventors:
Thomas P. Hager, Larry W. Ferguson
Patented Case
View Patent ↗
Granted: May 22, 1984
Filed: Apr 14, 1982
Inventors
Thomas P. Hager
Larry W. Ferguson
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.