Granted Patent
Utility
US 4,401,924 · App. 06/300,411
Speed control apparatus for winding linear material
Inventor:
Raymond Grover
Patented Case
View Patent ↗
Granted: Aug 30, 1983
Filed: Sep 8, 1981
Inventor
Raymond Grover
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.