Granted Patent
Utility
US 4,498,320 · App. 06/298,659
Apparatus for locking a control device
Inventor:
Jerry D. Mullis
Patented Case
View Patent ↗
Granted: Feb 12, 1985
Filed: Sep 2, 1981
Inventor
Jerry D. Mullis
Assignee (at issue)
Conbraco Industries, 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.