Granted Patent
Utility
US 4,953,630 · App. 07/413,391
Apparatus for controlling an automobile air-conditioner to control defrost bleed air
Inventor:
Katsumi Iida
Patented Case
View Patent ↗
Granted: Sep 4, 1990
Filed: Sep 27, 1989
Inventor
Katsumi Iida
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.