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US Patent 11672397 All in the head surface cleaning apparatus
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Is a
Patent
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Date Filed
October 18, 2021
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Date of Patent
June 13, 2023
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Patent Application Number
17504147
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Patent Citations
US Patent 9119511 Centrifugal dirt separation configurations for household-type and shop-type vacuum cleaners
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US Patent 8020251 Vacuum cleaner with collapsible handle
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US Patent 8268029 Cyclone dust-collecting apparatus
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US Patent 7222393 Vacuum cleaner nozzle for floors and carpets
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Patent Jurisdiction
United States Patent and Trademark Office
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Patent Number
11672397
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Patent Primary Examiner
David Redding
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CPC Code
A47L 5/225
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A47L 5/30
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A47L 5/32
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A47L 5/365
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A47L 9/0018
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A47L 9/0411
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A47L 9/16
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A47L 9/1608
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A47L 9/1666
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A47L 9/1683
0
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