US Patent 7457571 Image forming apparatus and process cartridge
Patent 7457571 was granted and assigned to RICOH COMPANY,LTD. on November, 2008 by the United States Patent and Trademark Office.
Is a
Date Filed
September 28, 2005
0
Date of Patent
November 25, 2008
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Patent Application Number
11236656
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Patent Jurisdiction
Patent Number
Patent Primary Examiner
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