Granted Patent
Utility
US 4,813,335 · App. 07/066,250
Hydraulic actuator for automobiles
Inventors:
Michio Wakiya, Hiromi Kono
Patented Case
View Patent ↗
Granted: Mar 21, 1989
Filed: Jun 25, 1987
Inventors
Michio Wakiya
Hiromi Kono
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.