Granted Patent
Utility
US 6,776,187 · App. 10/694,114
Quick coupling with pressure assist piston
Inventors:
Timothy Marquis, Ojars Maldavs
Patented Case
View Patent ↗
Granted: Aug 17, 2004
Filed: Oct 27, 2003
Inventors
Timothy Marquis
Ojars Maldavs
Assignee (at issue)
Parker-Hannifin 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.