Granted Patent
Utility
US 4,227,906 · App. 05/703,722
Environmental control for mineral fiber-forming
Inventor:
Elmer P. Rieser
Patented Case
View Patent ↗
Granted: Oct 14, 1980
Filed: Jul 9, 1976
Inventor
Elmer P. Rieser
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.