Granted Patent
Utility
US 5,184,147 · App. 07/688,758
Ink jet print head maintenance system
Inventors:
Donald B. MacLane, Ted E. Deur, Jeffrey J. Anderson, Donald R. Titterington, James C. Oswald, Richard S. Meissner
Patented Case
View Patent ↗
Granted: Feb 2, 1993
Filed: Apr 22, 1991
Inventors
Donald B. MacLane
Ted E. Deur
Jeffrey J. Anderson
Donald R. Titterington
James C. Oswald
Richard S. Meissner
Assignee (at issue)
Tektronix, Inc.
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.