Granted Patent
Utility
US 4,255,317 · App. 05/962,404
Non-discoloring glass strand size
Inventors:
Thomas A. Coakley, John E. Rubadue, Carl E. Forman, Robert A. Schweizer
Patented Case
View Patent ↗
Granted: Mar 10, 1981
Filed: Nov 20, 1978
Inventors
Thomas A. Coakley
John E. Rubadue
Carl E. Forman
Robert A. Schweizer
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.