Granted Patent
Utility
US 4,123,569 · App. 05/800,385
Direct ribbon inking by gravure
Inventors:
Glenn E. Peterson, Robert T. Emerson, William J. Schoenlein
Patented Case
View Patent ↗
Granted: Oct 31, 1978
Filed: May 25, 1977
Inventors
Glenn E. Peterson
Robert T. Emerson
William J. Schoenlein
Assignee (at issue)
Columbia Ribbon & Carbon Mfg. Co., 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.