Granted Patent
Utility
US 5,711,193 · App. 08/562,077
Reversible ratcheting screwdriver with improved reversing ring
Inventors:
Daniel M. Eggert, Christopher D. Thompson
Patented Case
View Patent ↗
Granted: Jan 27, 1998
Filed: Nov 22, 1995
Inventors
Daniel M. Eggert
Christopher D. Thompson
Assignee (at issue)
Snap-On Technologies, 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.