Patent · US Expired

Cleaning unit for collecting debris in a swimming pool

USD309965S · kind S · design

6Cited by
3References
1Claims
0Family size

Assignee

Inventor

Key dates

Filing dateNov 7, 1986
Grant dateAug 14, 1990
Priority date
Expiry dateAug 14, 2004

Classification

  • Technology area (CPC —)General

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