Granted Patent
Utility
US 4,086,831 · App. 05/763,529
Ratchet driver
Inventor:
Lloyd T. Smith
Patented Case
View Patent ↗
Granted: May 2, 1978
Filed: Jan 28, 1977
Inventor
Lloyd T. Smith
Assignee (at issue)
SV TOOL CORPORATION
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.