Granted Patent
Utility
US 4,600,630 · App. 06/536,455
Method for making a protective coating on a machine-readable marking and the product thereof
Inventors:
Robert L. Quinn, Philip M. Heyman, Abraham Goldman
Patented Case
View Patent ↗
Granted: Jul 15, 1986
Filed: Sep 28, 1983
Inventors
Robert L. Quinn
Philip M. Heyman
Abraham Goldman
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.