Granted Patent
Utility
US 4,270,943 · App. 06/109,006
Rotary fiber forming spinner
Inventors:
John M. Riddell, William W. Schultz
Patented Case
View Patent ↗
Granted: Jun 2, 1981
Filed: Dec 31, 1979
Inventors
John M. Riddell
William W. Schultz
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.