Granted Patent
Utility
US 5,138,334 · App. 07/608,857
Pneumatic surface cleaning method and apparatus for ink jet printheads
Inventors:
Paul J. Rowe, Richard A. Morano
Patented Case
View Patent ↗
Granted: Aug 11, 1992
Filed: Nov 5, 1990
Inventors
Paul J. Rowe
Richard A. Morano
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.