Granted Patent
Utility
US 6,016,946 · App. 09/002,198
Internal combustion fastener driving tool shuttle valve
Inventors:
Alan Phillips, John Schnell
Patented Case
View Patent ↗
Granted: Jan 25, 2000
Filed: Dec 31, 1997
Inventors
Alan Phillips
John Schnell
Assignee (at issue)
Porter-Cable Corporation
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.