Granted Patent
Utility
US 5,016,502 · App. 07/502,545
Power wrench
Inventor:
John K. Junkers
Patented Case
View Patent ↗
Granted: May 21, 1991
Filed: Mar 30, 1990
Inventor
John K. Junkers
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.