Granted Patent
Utility
US 4,920,755 · App. 07/356,369
Control apparatus for automobile air-conditioners
Inventor:
Takahashi Tadahiro
Patented Case
View Patent ↗
Granted: May 1, 1990
Filed: May 24, 1989
Inventor
Takahashi Tadahiro
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.