Granted Patent
Utility
US 5,477,605 · App. 08/246,348
Method of manufacturing a radiant electric heater
Inventors:
Joseph A. McWilliams, Ali Paybarah
Patented Case
View Patent ↗
Granted: Dec 26, 1995
Filed: May 19, 1994
Inventors
Joseph A. McWilliams
Ali Paybarah
Assignee (at issue)
Ceramaspeed, 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.