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SURFACE CLEANING APPARATUS WITH AN EXTERNAL DIRT CHAMBER

17/549,138 | U.S. Patent Application

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Location ELECTRONIC
Filed Dec. 13, 2021
Examiner DUNG H BUI
Class 055
Art Group 1773
Patent No. 11,690,489
Case Type Utility - 055/459100
Status Patented Case
Parent 16/847,476 Patented
Parent 16/100,624 Patented
Parent 15/937,220 Patented
Parent 16/450,304 Abandoned
Parent 15/184,954 Patented
Parent 13/779,405 Patented
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Last Updated: 1 year, 3 months ago
Date # Transaction