Piano keyboard
Description
The broken lines in the figures illustrate portions of the piano keyboard that form no part of the claimed design.
Claims
The ornamental design for a piano keyboard, as shown and described.
Referenced Cited
U.S. Patent Documents
4468999 | September 4, 1984 | Bonanno |
4653375 | March 31, 1987 | Honda |
4674385 | June 23, 1987 | Bellini |
D340469 | October 19, 1993 | Nakada |
9183820 | November 10, 2015 | Adnitt |
D866652 | November 12, 2019 | Boerner |
D940785 | January 11, 2022 | Huang |
D976997 | January 31, 2023 | Zhou |
D982658 | April 4, 2023 | Chen |
20070012162 | January 18, 2007 | Saito |
20220093069 | March 24, 2022 | Fukushima |
20220130352 | April 28, 2022 | Hoshino |
Patent History
Patent number: D1003346
Type: Grant
Filed: May 16, 2022
Date of Patent: Oct 31, 2023
Inventor: Yongning Huang (Guangdong)
Primary Examiner: R. Johnson
Application Number: 29/838,851
Type: Grant
Filed: May 16, 2022
Date of Patent: Oct 31, 2023
Inventor: Yongning Huang (Guangdong)
Primary Examiner: R. Johnson
Application Number: 29/838,851
Classifications
Current U.S. Class:
Keyboard Type (D17/1)