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DOORBELL COMMUNICATION SYSTEMS AND METHODS

15/455,360 | U.S. Patent Application

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Location ELECTRONIC
Filed March 10, 2017
Examiner JARED T WALKER
Class 348
Art Group 2486
Patent No. 9,888,216
Case Type Utility - 348/143000
Status Patented Case
Parent 62/400,611 Expired
Parent 15/167,831 Patented
Parent 14/861,613 Patented
Parent 15/341,140 Pending
Child 15/811,829 Pending
Last Updated: 4 years, 2 months ago
Date # Transaction