Writing board
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Description
The dot dash broken lines depict the boundary of
Claims
The ornamental design for a writing board, as shown and described.
Referenced Cited
U.S. Patent Documents
875003 | December 1907 | Shank |
1830150 | November 1931 | Weishaar |
2713738 | July 1955 | Harman |
4171584 | October 23, 1979 | Kaiser |
D277875 | March 5, 1985 | Waggoner, Jr. |
D415796 | October 26, 1999 | Habermehl |
6435560 | August 20, 2002 | Pruner |
D521565 | May 23, 2006 | Stewart |
D687493 | August 6, 2013 | Rippinger |
D825659 | August 14, 2018 | He |
D933129 | October 12, 2021 | Pereira |
Patent History
Patent number: D991344
Type: Grant
Filed: Mar 3, 2023
Date of Patent: Jul 4, 2023
Assignee: (Nanchang)
Inventor: Qiang Chen (Nanchang)
Primary Examiner: Garth Rademaker
Assistant Examiner: Laura H Yu
Application Number: 29/871,997
Type: Grant
Filed: Mar 3, 2023
Date of Patent: Jul 4, 2023
Assignee: (Nanchang)
Inventor: Qiang Chen (Nanchang)
Primary Examiner: Garth Rademaker
Assistant Examiner: Laura H Yu
Application Number: 29/871,997
Classifications
Current U.S. Class:
D19/113