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SYSTEM AND METHOD FOR COMMUNICATING WITH A REMOTE COMMUNICATION UNIT VIA THE PUBLIC SWITCHED TELEPHONE NETWORK (PSTN)

09/301,671 | U.S. Patent Application

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Location FILE REPOSITORY (FRANCONIA)
Filed April 28, 1999
Examiner SONNY TRINH
Class 455
Art Group 2681
Patent No. 6,618,578
Case Type Utility - 455/406000
Status Patented Case
Parent 08/895,720 Patented
Child 10/657,398 Patented
Last Updated: 4 years, 2 months ago
Date # Transaction