Granted Patent
Utility
US 4,677,902 · App. 06/809,526
Deodorizing device of an air conditioning system for automotive vehicles
Inventor:
Masami Takemasa
Patented Case
View Patent ↗
Granted: Jul 7, 1987
Filed: Dec 16, 1985
Inventor
Masami Takemasa
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.