Granted Patent
Utility
US 6,098,723 · App. 09/296,879
Reciprocating tool having a piston retainer
Inventors:
Robert A. Yaniero, Jack Pressley
Patented Case
View Patent ↗
Granted: Aug 8, 2000
Filed: Apr 22, 1999
Inventors
Robert A. Yaniero
Jack Pressley
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.