Granted Patent
Utility
US 5,117,714 · App. 07/487,921
One-piece, open-end wrenching head with serrated jaws
Inventors:
William T. Pagac, Frank Mikic, Thomas S. Severson, Douglas M. Sorbie
Patented Case
View Patent ↗
Granted: Jun 2, 1992
Filed: Mar 5, 1990
Inventors
William T. Pagac
Frank Mikic
Thomas S. Severson
Douglas M. Sorbie
Assignee (at issue)
Snap-on Tools Company
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.