Spectacles
US5940160A · kind A · utility
Inventors
Key dates
| Filing date | Mar 1, 1998 |
| Grant date | Aug 17, 1999 |
| Priority date | — |
| Expiry date | Mar 1, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02C5/02
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A pair of spectacles has a first frame, a second frame, a first temple, a second temple, a first lens, and a second lens. The first temple has a first annular end. The second temple has a second annular end. The first frame has a first joint, a second joint, a first middle portion, a first notch, and a second notch. The second frame has a third joint, a fourth joint, a second middle portion, a third notch, and a fourth notch. The first middle portion intersects the second middle portion. The first notch engages with the third notch. The second notch engages with the fourth notch. The first annular end is disposed between the first joint and the third joint. The second annular end is disposed between the second joint and the fourth joint.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.