Granted Patent
Utility
US 4,695,712 · App. 06/586,712
Flexible autoregulating heater with a latching mechanism
Inventor:
Paul F. Busch
Patented Case
View Patent ↗
Granted: Sep 22, 1987
Filed: Mar 6, 1984
Inventor
Paul F. Busch
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.