Granted Patent
Utility
US 5,227,809 · App. 07/716,436
Automatic print head spacing mechanism for ink jet printer
Inventors:
Clayton W. Carpenter, Arthur C. Van Horne, David W. Hanks, Donald B. MacLane
Patented Case
View Patent ↗
Granted: Jul 13, 1993
Filed: Jun 17, 1991
Inventors
Clayton W. Carpenter
Arthur C. Van Horne
David W. Hanks
Donald B. MacLane
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.