Granted Patent
Utility
US 4,294,416 · App. 06/132,473
Controlled multipackage winding
Inventor:
John T. Beckman
Patented Case
View Patent ↗
Granted: Oct 13, 1981
Filed: Mar 19, 1980
Inventor
John T. Beckman
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.