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US Patent 11974959 Retractable walker
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Patent
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Date Filed
January 12, 2024
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Date of Patent
May 7, 2024
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Patent Application Number
18411186
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Patent Citations
US Patent 11648170 Brake system for assistive mobility device
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US Patent 11779506 Connecting rod self-locking structure for double-folded rollator
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US Patent 9808394 Foldable walker device
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US Patent 10391018 Walk again walker
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US Patent 10470963 Combination walker and cane
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US Patent 10857058 Walker assistance device
0
Patent Inventor Names
Yu Chen
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Patent Jurisdiction
United States Patent and Trademark Office
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Patent Number
11974959
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Patent Primary Examiner
Erez Gurari
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CPC Code
A61H 2201/1633
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A61H 2201/0192
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A61H 3/04
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