Granted Patent
Utility
US 5,110,091 · App. 07/737,210
Scissors jack which has improved formed gear teeth
Inventors:
Darryl L. Engel, John Scoville
Patented Case
View Patent ↗
Granted: May 5, 1992
Filed: Jul 29, 1991
Inventors
Darryl L. Engel
John Scoville
Assignee (at issue)
Universal Tool & Stamping Co., 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.