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SELF-PROPELLED DEVICE WITH ACTIVELY ENGAGED DRIVE SYSTEM

15/707,693 | U.S. Patent Application

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Location ELECTRONIC
Filed Sept. 18, 2017
Examiner MARY DA ZHI WANG CHEUNG
Class 701
Art Group 3665
Patent No. 10,678,235
Case Type Utility - 701/023000
Status Patented Case
Parent 14/884,632 Patented
Parent 14/35,841 Patented
Parent 13/342,853 Patented
Parent 61/430,083 Expired
Parent 61/553,923 Expired
Parent 61/430,023 Expired
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Last Updated: 1 year, 10 months ago
Date # Transaction