Granted Patent
Utility
US 4,458,399 · App. 06/521,616
Ink roller assembly with capillary ink supply
Inventor:
John R. Kessler
Patented Case
View Patent ↗
Granted: Jul 10, 1984
Filed: Aug 8, 1983
Inventor
John R. Kessler
Assignee (at issue)
Monarch Marking Systems, 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.