Granted Patent
Utility
US 4,359,875 · App. 06/256,228
Automotive air conditioning apparatus
Inventor:
Masami Ohtani
Patented Case
View Patent ↗
Granted: Nov 23, 1982
Filed: Apr 21, 1981
Inventor
Masami Ohtani
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.