Granted Patent
Utility
US 4,389,669 · App. 06/238,831
Opto-video inspection system
Inventors:
Daniel Epstein, Robert A. Lieberman
Patented Case
View Patent ↗
Granted: Jun 21, 1983
Filed: Feb 27, 1981
Inventors
Daniel Epstein
Robert A. Lieberman
Assignee (at issue)
ILC Data Device 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.