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DOORBELL COMMUNICATION SYSTEMS AND METHODS

14/664,345 | U.S. Patent Application

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Location ELECTRONIC
Filed March 20, 2015
Examiner JARED T WALKER
Class 348
Art Group 2486
Patent No. 9,118,819
Case Type Utility - 348/143000
Status Patented Case
Parent 62/127,660 Expired
Parent 14/589,830 Patented
Parent 14/502,601 Patented
Parent 14/492,809 Patented
Child 14/684,302 Patented
Child 14/695,436 Patented
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Last Updated: 4 years, 2 months ago
Date # Transaction