Granted Patent
Utility
US 4,530,286 · App. 06/642,494
Intaglio printing plate for printing serial markings
Inventor:
Gerard Samuels
Patented Case
View Patent ↗
Granted: Jul 23, 1985
Filed: Aug 20, 1984
Inventor
Gerard Samuels
Assignee (at issue)
RCA 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.