Granted Patent
Utility
US 4,578,669 · App. 06/530,962
Remote switch position indicator
Inventor:
Allan O. Woods
Patented Case
View Patent ↗
Granted: Mar 25, 1986
Filed: Sep 12, 1983
Inventor
Allan O. Woods
Assignee (at issue)
Hydril Company
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.