IP Library › Granted Patent US 5,481,609
Granted Patent Utility
US 5,481,609 · App. 08/119,734

System for controlling access to broadcast transmissions

Inventors: Michael H. Cohen, Jonathan Hashkes
Patented Case View Patent ↗
Granted: Jan 2, 1996 Filed: Sep 10, 1993
Inventors
Michael H. Cohen
Jonathan Hashkes
Assignee (at issue)
News Data Security Products Ltd.

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Quick Facts
Patent No.
US 5,481,609
App. No.
08/119,734
Filed
1993-09-10
Granted
1996-01-02
Kind
A