Granted Patent
Utility
US 4,623,798 · App. 06/407,915
Thermosensitive switching circuit having comparator with open collector output
Inventors:
Kenji Arai, Kazumasa Kurihara
Patented Case
View Patent ↗
Granted: Nov 18, 1986
Filed: Aug 13, 1982
Inventors
Kenji Arai
Kazumasa Kurihara
Assignee (at issue)
Diesel Kiki Co., Ltd.
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.