Patent
   D926878
Priority
Jul 01 2019
Filed
Jul 01 2019
Issued
Aug 03 2021
Expiry
Aug 03 2036
Assg.orig
Entity
unknown
12
14
n/a
The ornamental design for a writing board, as shown and described.

1. Writing board

1.1:Front

1.2:Bottom

1.3:Right

1.4:Perspective

1.5:Left

1.6:Top

1.7:Back

Pereira, Adriano Alexandre Oliveira

Patent Priority Assignee Title
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D975180, Jun 29 2021 Beijing Yilingchenfei Technology Co., Ltd. Drawing board
D983879, May 21 2021 LG Electronics Inc. Electronic blackboard
D988403, Dec 24 2020 Curved writing board
D989864, Jun 29 2021 Beijing Yilingchenfei Technology Co., Ltd. Drawing board
ER191,
ER2244,
ER2908,
ER5357,
ER5820,
ER6810,
Patent Priority Assignee Title
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May 21 2021OLIVEIRA PEREIRA, ADRIANO ALEXANDREBI-SILQUE, S A ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0563270724 pdf
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