Granted Patent
Utility
US 4,394,563 · App. 06/271,513
Foot construction for portable electric space heaters
Inventor:
John Schnell
Patented Case
View Patent ↗
Granted: Jul 19, 1983
Filed: Jun 8, 1981
Inventor
John Schnell
Assignee (at issue)
Toastmaster, 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.