Granted Patent
Utility
US 5,083,477 · App. 07/648,565
Control knob locking assembly
Inventor:
Ron J. Geil
Patented Case
View Patent ↗
Granted: Jan 28, 1992
Filed: Jan 31, 1991
Inventor
Ron J. Geil
Assignee (at issue)
Gould 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.