Granted Patent
Utility
US 5,121,139 · App. 07/692,841
Compact ink jet printer having a drum drive mechanism
Inventor:
Edward F. Burke
Patented Case
View Patent ↗
Granted: Jun 9, 1992
Filed: Apr 29, 1991
Inventor
Edward F. Burke
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.