Granted Patent
Utility
US 4,620,175 · App. 06/786,776
Simple thermostat for dip mounting
Inventors:
Dennis K. Karr, David A. Sprankle
Patented Case
View Patent ↗
Granted: Oct 28, 1986
Filed: Oct 11, 1985
Inventors
Dennis K. Karr
David A. Sprankle
Assignee (at issue)
North American Philips Corporation
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.