Patent · US Active

Toy piano

USD973138S1 · kind S1 · design

4Cited by
22References
1Claims
0Family size

Inventor

  • Xi Li · Changzhou City, CN

Key dates

Filing dateNov 26, 2020
Grant dateDec 20, 2022
Priority date
Expiry dateDec 20, 2037

Classification

  • Technology area (CPC —)General

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.