Patent · US Expired

Closure

USD320940S · kind S · design

3Cited by
21References
1Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJun 29, 1988
Grant dateOct 22, 1991
Priority date
Expiry dateOct 22, 2005

Classification

  • Technology area (CPC —)General

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