US Patent D889300 Audio/video doorbell and door viewer
Patent D889300 was granted and assigned to Amazon on July, 2020 by the United States Patent and Trademark Office.
Is a
Current Assignee
Date Filed
December 13, 2018
Date of Patent
July 7, 2020
Patent Applicant
Patent Application Number
29673311
Patent Jurisdiction
Patent Number
Patent Primary Examiner
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