Patent · US Expired

Face of a retaining wall block

USD437422S · kind S · design

143Cited by
48References
1Claims
0Family size

Assignee

Inventors

Key dates

Filing dateAug 17, 1999
Grant dateFeb 6, 2001
Priority date—
Expiry dateFeb 6, 2015

Classification

  • Technology area (CPC —)General

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