US Patent D538357 End caps for a triangle-shaped toy block
Patent D538357 was granted and assigned to Mattel, Inc. on March, 2007 by the United States Patent and Trademark Office.
Is a
Date Filed
November 5, 2004
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Date of Patent
March 13, 2007
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Patent Application Number
29216556
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Patent Citations Received
Patent Inventor Names
Robert W. Salmon
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Patent Jurisdiction
Patent Number
Patent Primary Examiner
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