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US Patent 11715967 Surface cleaning apparatus, and a charging unit therefor

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Patent attributes

Patent Jurisdiction

United States Patent and Trademark Office

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Patent Number

Date of Patent

August 1, 2023

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Patent Application Number

175287820

Date Filed

November 17, 2021

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Patent Citations

US Patent 8138819 Driving transistor control circuit

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US Patent 8183819 High-speed charging power supply device and high-speed charging power supply method

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US Patent 8482263 Rapid transfer of stored energy

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US Patent 8834209 Electrical cord and apparatus using same

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US Patent 10165912 Surface cleaning apparatus

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US Patent 9775484 Surface cleaning apparatus

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US Patent 11218017 Cordless appliance, such as a surface cleaning apparatus, and a charging unit therefor

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US Patent 7377007 Vacuum cleaner with detachable vacuum module

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Patent Citations Received

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Patent Primary Examiner

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CPC Code

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A surface cleaning apparatus, such as a portable surface cleaning apparatus is powered by one or more ultracapacitors and a charging unit for same is provided.

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