Granted Patent
Utility
US 5,121,689 · App. 07/676,053
Ultrasonic ink metering for variable input control in keyless lithographic printing
Inventor:
Thomas A. Fadner
Patented Case
View Patent ↗
Granted: Jun 16, 1992
Filed: Mar 27, 1991
Inventor
Thomas A. Fadner
Assignee (at issue)
Rockwell International Corporation
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.