Granted Patent
Utility
US 4,373,405 · App. 06/183,842
Molded plastic control lock knob with push and/or pull feature
Inventor:
Ronald J. Geil
Patented Case
View Patent ↗
Granted: Feb 15, 1983
Filed: Sep 3, 1980
Inventor
Ronald 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.