Writing board
Description
The broken lines shown in the drawings depict portions of the writing board that form no part of the claimed design.
Claims
The ornamental design for a writing board, as shown and described.
Referenced Cited
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Patent History
Patent number: D935525
Type: Grant
Filed: Sep 8, 2020
Date of Patent: Nov 9, 2021
Inventor: Zhe Ji (Shenzhen)
Primary Examiner: Elizabeth A. Albert
Application Number: 29/749,590
Type: Grant
Filed: Sep 8, 2020
Date of Patent: Nov 9, 2021
Inventor: Zhe Ji (Shenzhen)
Primary Examiner: Elizabeth A. Albert
Application Number: 29/749,590
Classifications
Current U.S. Class:
D19/113