Granted Patent
Utility
US 4,478,631 · App. 06/482,676
Glass feeder heat baffle
Inventor:
Eustace H. Mumford
Patented Case
View Patent ↗
Granted: Oct 23, 1984
Filed: Apr 6, 1983
Inventor
Eustace H. Mumford
Assignee (at issue)
Owens-Illinois Inc.
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.