Patent · US Expired

Chemical detergent block

USD334968S · kind S · design

17Cited by
7References
1Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMay 14, 1991
Grant dateApr 20, 1993
Priority date
Expiry dateApr 20, 2007

Classification

  • Technology area (CPC —)General

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