Granted Patent
Utility
US 4,748,447 · App. 06/870,787
Timing signal generating apparatus for rotating devices
Inventor:
Hidekazu Oshizawa
Patented Case
View Patent ↗
Granted: May 31, 1988
Filed: Jun 5, 1986
Inventor
Hidekazu Oshizawa
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.