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AUDIO-VIDEO COMMUNICATION SYSTEM FOR RECEIVING PERSON AT ENTRANCE

11/618,615 | U.S. Patent Application

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Location ELECTRONIC
Filed Dec. 29, 2006
Examiner STELLA L WOO
Class 348
Art Group 2614
Patent No. 8,154,581
Case Type Utility - 348/014060
Status Patented Case
Parent 10/682,185 Patented
Parent 60/418,384 Expired
Child 11/929,412 Patented
Child 11/929,449 Abandoned
Child 11/929,457 Abandoned
Child 11/929,460 Abandoned
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Last Updated: 2 years, 11 months ago
Date # Transaction