Patent · US Expired

Backrest

USD639091S1 · kind S1 · design

39Cited by
301References
1Claims
0Family size

Assignee

Inventors

Key dates

Filing dateApr 13, 2010
Grant dateJun 7, 2011
Priority date
Expiry dateJun 7, 2025

Classification

  • Technology area (CPC —)General

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