Granted Patent
Utility
US 5,236,433 · App. 07/696,949
Tool driver
Inventor:
Brian D. Salyer
Patented Case
View Patent ↗
Granted: Aug 17, 1993
Filed: May 8, 1991
Inventor
Brian D. Salyer
Assignee (at issue)
Othy, 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.