Collapsible glasses frames
US5225857A · kind A · utility
5Cited by
1References
7Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 24, 1991 |
| Grant date | Jul 6, 1993 |
| Priority date | — |
| Expiry date | May 24, 2011 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02C5/08
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Disclosed is a collapsible glasses frame having fronts which are spread when used and collapsible when not used, comprising a mechanism for setting a pad member into a predetermined position when the fronts are spread for use, and a mechanism for shifting the pad member when said fronts are folded up, thus enabling the glasses frame to be made more compact.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.