Toy building block
Latest Shanghai Putao Technology Co., Ltd. Patents:
Description
Claims
The ornamental design for a toy building block, as shown and described.
Referenced Cited
U.S. Patent Documents
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Patent History
Patent number: D854629
Type: Grant
Filed: Apr 13, 2018
Date of Patent: Jul 23, 2019
Assignee: Shanghai Putao Technology Co., Ltd. (Shanghai)
Inventors: Qian Zhang (Shanghai), Lei Li (Shanghai)
Primary Examiner: Cynthia M. Chin
Application Number: 29/644,073
Type: Grant
Filed: Apr 13, 2018
Date of Patent: Jul 23, 2019
Assignee: Shanghai Putao Technology Co., Ltd. (Shanghai)
Inventors: Qian Zhang (Shanghai), Lei Li (Shanghai)
Primary Examiner: Cynthia M. Chin
Application Number: 29/644,073
Classifications
Current U.S. Class:
Vehicle Part (D21/495)