Granted Patent
Utility
US 3,966,133 · App. 05/535,621
Tension controlling apparatus
Inventor:
Robert J. Gelin
Patented Case
View Patent ↗
Granted: Jun 29, 1976
Filed: Dec 23, 1974
Inventor
Robert J. Gelin
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.