Granted Patent
Utility
US 5,166,513 · App. 07/695,944
Dual actuation photoelectric foot switch
Inventors:
Peter B. Keenan, Dave Youngquist
Patented Case
View Patent ↗
Granted: Nov 24, 1992
Filed: May 6, 1991
Inventors
Peter B. Keenan
Dave Youngquist
Assignee (at issue)
Coherent, 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.