Granted Patent
Utility
US 4,370,604 · App. 06/277,561
Solenoid actuated servo system
Inventor:
Patrick J. Griffin
Patented Case
View Patent ↗
Granted: Jan 25, 1983
Filed: Jun 25, 1981
Inventor
Patrick J. Griffin
Assignee (at issue)
Honeywell Limited
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.