Thumb piano
Description
The broken lines in the drawings depict portions of the thumb piano that form no part of the claimed design.
Claims
The ornamental design for a thumb piano, as shown and described.
Referenced Cited
U.S. Patent Documents
Other references
1763518 | June 1930 | Haweis |
3610085 | October 1971 | Wilson et al. |
D222813 | January 1972 | Wilson |
3961553 | June 8, 1976 | Schorr |
D688729 | August 27, 2013 | Trinca |
- Amazon. https://www.amazon.com/Thumb-Pianos-Professional-Instrument-Instructions/dp/B092SHX41 R/ref=sr_1_55?dchild=1&keywords=thumb+piano&qid=1620326940&sr=8-55. “Thumb Pianos 17 Keys Kalimba”. Date unknown: Viewed May 2021 (Year: 2021).
Patent History
Patent number: D923081
Type: Grant
Filed: Dec 25, 2020
Date of Patent: Jun 22, 2021
Inventor: Fei Yang (Guangzhou)
Primary Examiner: R. Johnson
Application Number: 29/763,883
Type: Grant
Filed: Dec 25, 2020
Date of Patent: Jun 22, 2021
Inventor: Fei Yang (Guangzhou)
Primary Examiner: R. Johnson
Application Number: 29/763,883
Classifications
Current U.S. Class:
Piano Or Cabinet Therefor (D17/7)