IP Library › Granted Patent US 5,852,785
Granted Patent Utility
US 5,852,785 · App. 08/639,508

Secure access telephone extension system and method in a cordless telephone system

Inventors: David Bartholomew, A. Ray Ivie, Alma K. Schurig
Patented Case View Patent ↗
Granted: Dec 22, 1998 Filed: Apr 29, 1996
Inventors
David Bartholomew
A. Ray Ivie
Alma K. Schurig

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Quick Facts
Patent No.
US 5,852,785
App. No.
08/639,508
Filed
1996-04-29
Granted
1998-12-22
Kind
A