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DOORBELL COMMUNICATION SYSTEMS AND METHODS

14/813,479 | U.S. Patent Application

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Location ELECTRONIC
Filed July 30, 2015
Examiner JARED T WALKER
Class 348
Art Group 2486
Patent No. 9,253,455
Case Type Utility - 348/143000
Status Patented Case
Parent 14/797,711 Patented
Parent 14/797,637 Patented
Parent 14/743,849 Patented
Parent 14/726,517 Patented
Parent 14/623,741 Patented
Child 15/8,304 Patented
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Last Updated: 3 years, 4 months ago
Date # Transaction