Patent · US Expired

Sign

USD268349S · kind S · design

15Cited by
1References
1Claims
0Family size

Assignee

Inventor

Key dates

Filing dateMar 27, 1981
Grant dateMar 22, 1983
Priority date
Expiry dateMar 22, 1997

Classification

  • Technology area (CPC —)General

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