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SELF-PROPELLED DEVICE WITH ACTIVELY ENGAGED DRIVE SYSTEM

14/35,841 | U.S. Patent Application

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Location ELECTRONIC
Filed Sept. 24, 2013
Examiner MARY DA ZHI WANG CHEUNG
Class 701
Art Group 3667
Patent No. 9,193,404
Case Type Utility - 701/099000
Status Patented Case
Parent 13/342,853 Patented
Parent 61/430,023 Expired
Parent 61/430,083 Expired
Parent 61/553,923 Expired
Child 14/459,235 Patented
Child 14/884,632 Patented
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Last Updated: 4 years, 4 months ago
Date # Transaction