Granted Patent
Utility
US 6,639,504 · App. 09/900,671
Thermal switching device
Inventors:
Karlheinz Eberl, Udo Stenzel, Klaus Dolling
Patented Case
View Patent ↗
Granted: Oct 28, 2003
Filed: Jul 6, 2001
Inventors
Karlheinz Eberl
Udo Stenzel
Klaus Dolling
Assignee (at issue)
Thermostat-und Schaltgeratebau GmbH & Co. KG
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.