Granted Patent
Utility
US 5,498,854 · App. 08/246,325
Radiant electric heater
Inventor:
Kevin McWilliams
Patented Case
View Patent ↗
Granted: Mar 12, 1996
Filed: May 19, 1994
Inventor
Kevin McWilliams
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.