Stackable cube puzzle
Description
The dashed lines shown in
Claims
The ornamental design for a stackable cube puzzle, as shown and described.
Referenced Cited
U.S. Patent Documents
Foreign Patent Documents
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Patent History
Patent number: D891530
Type: Grant
Filed: Dec 2, 2018
Date of Patent: Jul 28, 2020
Inventors: Ted Strauss (San Rafael, CA), Edwin Berlin (Oakland, CA)
Primary Examiner: Catherine A Tuttle
Application Number: 29/672,024
Type: Grant
Filed: Dec 2, 2018
Date of Patent: Jul 28, 2020
Inventors: Ted Strauss (San Rafael, CA), Edwin Berlin (Oakland, CA)
Primary Examiner: Catherine A Tuttle
Application Number: 29/672,024
Classifications