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DOORBELL COMMUNICATION SYSTEMS AND METHODS

14/743,849 | U.S. Patent Application

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Location ELECTRONIC
Filed June 18, 2015
Examiner JARED T WALKER
Class 348
Art Group 2486
Patent No. 9,172,922
Case Type Utility - 348/143000
Status Patented Case
Parent 62/158,750 Expired
Parent 14/726,517 Patented
Parent 14/684,302 Patented
Parent 14/737,411 Patented
Child 14/748,054 Patented
Child 15/806,322 Abandoned
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Last Updated: 3 years, 3 months ago
Date # Transaction