Granted Patent
Utility
US 4,677,830 · App. 06/774,760
Air conditioning system for automotive vehicles
Inventors:
Seiji Sumikawa, Ichiro Noguchi
Patented Case
View Patent ↗
Granted: Jul 7, 1987
Filed: Sep 11, 1985
Inventors
Seiji Sumikawa
Ichiro Noguchi
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.