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DOORBELL COMMUNICATION SYSTEMS AND METHODS

16/54,961 | U.S. Patent Application

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Location ELECTRONIC
Filed Aug. 3, 2018
Examiner ROWINA J CATTUNGAL
Class 348
Art Group 2425
Case Type Utility - 348/143000
Status Abandoned -- Failure to Respond to an Office Action
Parent 14/861,613 Patented
Parent 15/60,282 Abandoned
Parent 15/608,825 Abandoned
Parent 15/806,322 Abandoned
Parent 15/205,959 Abandoned
Parent 15/701,451 Abandoned
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Last Updated: 2 years, 10 months ago
Date # Transaction