Granted Patent
Utility
US 4,949,553 · App. 07/452,274
Air-conditioner for automobiles
Inventor:
Nobuhiko Suzuki
Patented Case
View Patent ↗
Granted: Aug 21, 1990
Filed: Dec 18, 1989
Inventor
Nobuhiko Suzuki
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.