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US Patent 8139972 Process cartridge and electrophotographic image forming apparatus

OverviewStructured DataIssuesContributorsActivity
Is a
Patent
Patent
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Date Filed
January 29, 2009
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Date of Patent
March 20, 2012
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Patent Application Number
12362094
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Patent Citations Received
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US Patent 12130582 Drum unit, cartridge, process cartridge and electrophotographic image forming apparatus having a movable coupling member
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US Patent 11774906 Drum unit, cartridge, process cartridge and electrophotographic image forming apparatus having a coupling member and a movable member
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US Patent 11841647 Cartridge and developing cartridge including a frame and sheet member provided at end side of the frame
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US Patent 11927910 Cartridge and image forming apparatus
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US Patent 11982952 Toner cartridge having feeding member and pump for discharging pump
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US Patent 12072664 Cartridge and image forming apparatus
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US Patent 11703794 Cartridge and image forming apparatus
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Patent Inventor Names
Daisuke Abe
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Naoya Asanuma
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Patent Jurisdiction
United States Patent and Trademark Office
United States Patent and Trademark Office
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Patent Number
8139972
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Patent Primary Examiner
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Hoan Tran
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