Granted Patent
Utility
US 5,669,272 · App. 08/605,395
Open end ratchet wrench
Inventor:
William Hansen
Patented Case
View Patent ↗
Granted: Sep 23, 1997
Filed: Feb 22, 1996
Inventor
William Hansen
Assignee (at issue)
A&E Manufacturing, 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.