Granted Patent
Utility
US 4,381,480 · App. 06/248,835
Apparatus for controlling a blower motor
Inventors:
Toshizo Hara, Shinji Sutoh, Toshio Kojima
Patented Case
View Patent ↗
Granted: Apr 26, 1983
Filed: Mar 30, 1981
Inventors
Toshizo Hara
Shinji Sutoh
Toshio Kojima
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.