Granted Patent
Utility
US 5,282,249 · App. 07/993,823
System for controlling access to broadcast transmissions
Inventors:
Michael H. Cohen, Jonathan Hashkes
Patented Case
View Patent ↗
Granted: Jan 25, 1994
Filed: Dec 18, 1992
Inventors
Michael H. Cohen
Jonathan Hashkes
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.