Granted Patent
Utility
US 6,250,399 · App. 09/394,326
Pneumatic tool with a reverse valve having an overdrive
Inventor:
David A. Giardino
Patented Case
View Patent ↗
Granted: Jun 26, 2001
Filed: Sep 13, 1999
Inventor
David A. Giardino
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.