Granted Patent
Utility
US 6,363,238 · App. 09/808,772
Substrate conditioner seal using differential air pressure
Inventors:
Stan Alan Spencer, Jack Gaynor Elliot
Patented Case
View Patent ↗
Granted: Mar 26, 2002
Filed: Mar 16, 2001
Inventors
Stan Alan Spencer
Jack Gaynor Elliot
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.