Toy building block
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The elements shown in broken lines are for illustrative purposes only and form no part of the claimed invention.
Claims
The ornamental design for a toy building block, as shown and described.
Type: Grant
Filed: Nov 9, 2007
Date of Patent: Sep 23, 2008
Assignee: Kokuyo Co., Ltd. (Osaka)
Inventors: Masaharu Nada (Osaka), Hiroshi Kamikawa (Tokyo)
Primary Examiner: Holly H. Baynham
Assistant Examiner: Cynthia M Chin
Attorney: Osha Liang LLP
Application Number: 29/297,405