Granted Patent
Utility
US 4,338,965 · App. 06/155,550
Self-monitoring dual-spool servovalve
Inventors:
Kenneth D. Garnjost, John S. Ballard
Patented Case
View Patent ↗
Granted: Jul 13, 1982
Filed: Jun 2, 1980
Inventors
Kenneth D. Garnjost
John S. Ballard
Assignee (at issue)
Moog Inc.
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.