Granted Patent
Utility
US 4,882,990 · App. 07/229,385
Ink roller for rotary press
Inventor:
Yuji Ijichi
Patented Case
View Patent ↗
Granted: Nov 28, 1989
Filed: Aug 8, 1988
Inventor
Yuji Ijichi
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.