Granted Patent
Utility
US 4,967,273 · App. 07/311,146
Television program transmission verification method and apparatus
Inventor:
Burton L. Greenberg
Patented Case
View Patent ↗
Granted: Oct 30, 1990
Filed: Feb 14, 1989
Inventor
Burton L. Greenberg
Assignee (at issue)
VidCode, Inc.
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.