Eyewear having a unitary flexible frame and an interchangeable lens
US5900922A · kind A · utility
19Cited by
19References
13Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 18, 1997 |
| Grant date | May 4, 1999 |
| Priority date | — |
| Expiry date | Aug 18, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02C1/04
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Glasses are described having a frame which accepts a lens. No screws or other fasteners are required. The lens fits within a first and second groove in the frame. A unitary lens design is preferred having a first and second lens portions. The lens can be tinted or clear, can contain corrective or noncorrective optics.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.