Granted Patent
Utility
US 6,234,189 · App. 09/437,461
Gas valve with thermoelectric safety shutoff
Inventor:
Jurgen Koch
Patented Case
View Patent ↗
Granted: May 22, 2001
Filed: Nov 10, 1999
Inventor
Jurgen Koch
Assignee (at issue)
AGT Gas Technology GmbH
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.