Granted Patent
Utility
US 6,644,502 · App. 10/022,898
Sheet stack holding apparatus for a printer or copier
Inventors:
Christopher Pearce, Jeffery W. Ryan, Brian Martin, Andy Balm
Patented Case
View Patent ↗
Granted: Nov 11, 2003
Filed: Dec 20, 2001
Inventors
Christopher Pearce
Jeffery W. Ryan
Brian Martin
Andy Balm
Assignee (at issue)
Xerox 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.