Granted Patent
Utility
US 4,268,179 · App. 06/088,840
Method and system for reproducing identification characters
Inventors:
George R. Long, Michael C. Smayling
Patented Case
View Patent ↗
Granted: May 19, 1981
Filed: Oct 29, 1979
Inventors
George R. Long
Michael C. Smayling
Assignee (at issue)
E.I. DU PONT DE NEMOURS AND COMPANY
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.