Granted Patent
Utility
US 5,821,952 · App. 08/709,066
Method for automatic print head spacing in an ink jet printer
Inventors:
David D. Martenson, Robert C. Tidrick, H. Erwin Grellmann
Patented Case
View Patent ↗
Granted: Oct 13, 1998
Filed: Sep 6, 1996
Inventors
David D. Martenson
Robert C. Tidrick
H. Erwin Grellmann
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.