Granted Patent
Utility
US 4,698,977 · App. 06/796,413
Air conditioning system for automotive vehicles
Inventor:
Tadahiro Takahashi
Patented Case
View Patent ↗
Granted: Oct 13, 1987
Filed: Nov 8, 1985
Inventor
Tadahiro Takahashi
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.