Patent · US Expired

Adjustable eyeglasses

USD308978S · kind S · design

4Cited by
5References
1Claims
0Family size

Assignee

Inventor

Key dates

Filing dateFeb 8, 1988
Grant dateJul 3, 1990
Priority date
Expiry dateJul 3, 2004

Classification

  • Technology area (CPC —)General

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