Granted Patent
Utility
US 6,311,786 · App. 09/204,698
Process of determining torque output and controlling power impact tools using impulse
Inventors:
David A. Giardino, Stephen Michael DeMarco
Patented Case
View Patent ↗
Granted: Nov 6, 2001
Filed: Dec 3, 1998
Inventors
David A. Giardino
Stephen Michael DeMarco
Assignee (at issue)
Chicago Pneumatic Tool 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.