US4196981A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Eyeglasses having magnetically positioned flip-up lenses
Assignee: Individual
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Filing: 1978-06-21
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Granted: 1980-04-08
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Expires: 1998-06-21
Abstract
Abstract These eyeglasses consist primarily of a frame, in the bridge portion of which, is a cylindrical magnet that is received within a sleeve of ferrous metal. The sleeve structure includes a flat connecting member, which is rigidly secured to a lens supporting member, so as to enable the wearer to pivot the lenses upward, or downward, as desired.
Inventors
- 👤 Jefferson P. Waldrop
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 06:08
CPC Classifications
G; G02; G02C; G02C1/00; G02C1/04; G02C9/00; G02C9/02; G02C2200/00; G02C2200/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
132 words
Eyeglasses comprising a frame having a bridge for supporting a lens mounting member which is pivotal of the main body of said frame, a cylindrical permanent magnet secured in an opening in the center of the top of said main body, the ends of said cylindrical permanent magnet being fixedly secured to the ends of said opening, said cylindrical permanent magnet being aligned with the longitudinal length of said main body and positioned above the bridge of said body, a ferrous metal sleeve disposed on said cylindrical magnet, with said lens mounting member being attached to said sleeve, said ferrous metal sleeve being rotatable on said permanent magnet such that the magnetic force between said magnet and said sleeve will hold said lens mounting member stationary in a raised or lowered position.
Claim 2
Dependent Claim
132 words
Eyeglasses comprising a frame having a bridge for supporting a lens mounting member which is pivotal of the main body of said frame, a cylindrical permanent magnet secured in an opening in the center of the top of said main body, the ends of said cylindrical permanent magnet being fixedly secured to the ends of said opening, said cylindrical permanent magnet being aligned with the longitudinal length of said main body and positioned above the bridge of said body, a ferrous metal sleeve disposed on said cylindrical magnet, with said lens mounting member being attached to said sleeve, said ferrous metal sleeve being rotatable on said permanent magnet such that the magnetic force between said magnet and said sleeve will hold said lens mounting member stationary in a raised or lowered position.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-04-08 | 1983-10-08 | 1984-04-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-04-08 | 1987-10-08 | 1988-04-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-04-08 | 1991-10-08 | 1992-04-08 | $7700.00 | Window Closed / Lapsed |