Granted Patent
Utility
US 4,795,870 · App. 06/745,936
Conductive member having integrated self-regulating heaters
Inventors:
John F. Krumme, Mark J. Cowell
Patented Case
View Patent ↗
Granted: Jan 3, 1989
Filed: Jun 18, 1985
Inventors
John F. Krumme
Mark J. Cowell
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.