Granted Patent
Utility
US 4,625,920 · App. 06/251,017
Rotary distributor
Inventor:
Stephen Seng
Patented Case
View Patent ↗
Granted: Dec 2, 1986
Filed: Apr 3, 1981
Inventor
Stephen Seng
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.