Granted Patent
Utility
US 4,745,264 · App. 06/666,346
High efficiency autoregulating heater
Inventor:
Philip Scot Carter
Patented Case
View Patent ↗
Granted: May 17, 1988
Filed: Oct 30, 1984
Inventor
Philip Scot Carter
Assignee (at issue)
Metcal, 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.