Patent US4253092A successfully refreshed from Google Patents.
Patent US5056906A successfully refreshed from Google Patents.
US5056906A
Expired / Lapsed
US
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Prescription lens attachment for sunglasses
Assignee: Individual
•
Filing: 1990-05-24
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Granted: 1991-10-15
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Expires: 2010-05-24
Abstract
Abstract Prescription lenses are detachably applied to sunglasses by securing the lenses between lens holder elements of a prescription lens holder and attaching the lens holder to the sunglass frame.
Inventors
- 👤 Min Akiyoshi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 21:49
CPC Classifications
G; G02; G02C; G02C9/00; G02C7/00; G02C7/02; G02C7/08; G02C7/086
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
113 words
Apparatus comprising, in combination: sunglasses including a sunglass frame and tinted sunglass elements connected to said frame; a prescription lens holder including two pairs of prescription lens holder elements, said prescription lens holder elements of each pair of prescription lens holder elements being spaced from each other and disposed in a common plane; a prescription lens disposed between the lens holder elements of at least one of said pairs of prescription lens elements; securement means for securing said prescription lens in fixed position between said lens holder elements; and attachment means for removably attaching said prescription lens holder to said sunglass frame whereby said prescription lens is disposed behind a tinted sunglass element.
Claim 2
Dependent Claim
113 words
Apparatus comprising, in combination: sunglasses including a sunglass frame and tinted sunglass elements connected to said frame; a prescription lens holder including two pairs of prescription lens holder elements, said prescription lens holder elements of each pair of prescription lens holder elements being spaced from each other and disposed in a common plane; a prescription lens disposed between the lens holder elements of at least one of said pairs of prescription lens elements; securement means for securing said prescription lens in fixed position between said lens holder elements; and attachment means for removably attaching said prescription lens holder to said sunglass frame whereby said prescription lens is disposed behind a tinted sunglass element.
Claim 3
Dependent Claim
45 words
Apparatus according to claim 1 wherein said sunglass frame has a plurality of notches formed therein and wherein said prescription lens holder additionally includes a plurality of projections for positioning in said notches, said notches and said projections at least partially comprising said attachment means.
Claim 4
Dependent Claim
45 words
Apparatus according to claim 1 wherein said prescription lens defines opposed grooves in the outer peripheral surface thereof, said prescription lens holder elements comprising elongated retention members positionable in said grooves, said grooves and said elongated retention members at least partially comprising said securement means.
Claim 5
Dependent Claim
18 words
Apparatus according to claim 1 wherein said prescription lens holder comprises a wire framework of light-weight, unitary construction.
Claim 6
Dependent Claim
33 words
Apparatus according to claim 2 wherein said projections include outwardly and downwardly projecting upper ends and outwardly and upwardly projecting lower ends, said ends bearing against said sunglass frame adjacent to said notches.
Claim 7
Dependent Claim
34 words
Apparatus according to claim 5 wherein said prescription lens holder additionally includes an upper elongated structural element connected to all of said projection upper ends and engageable with said sunglass frame between said notches.
Claim 8
Dependent Claim
49 words
Apparatus according to claim 5 wherein said prescription lens holder additionally includes a pair of lower elongated structural elements, each of said lower elongated structural elements engageable with said sunglass frame and extending between the prescription lens holder elements of one of said pairs of prescription lens holder elements.
Claim 9
Dependent Claim
26 words
Apparatus according to claim 7 wherein each of said lower elongated structural elements have an inwardly directed bowed configuration for resilient engagement with said sunglass frame.
Claim 10
Dependent Claim
51 words
Apparatus according to claim 3 wherein each of said elongated retention members is formed of wire and defines a pair of spaced bight segments engageable with the outer periphery of a prescription lens adjacent to said grooves to maintain said prescription lens in fixed position relative to said elongated retention members.
Claim 11
Dependent Claim
28 words
Apparatus according to claim 9 wherein said elongated retention members bear against a substantially straight prescription lens surface within said grooves to prevent rotation of said prescription lens.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1994-10-14 | 1995-04-15 | 1995-10-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-10-14 | 1999-04-15 | 1999-10-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-10-14 | 2003-04-15 | 2003-10-15 | $7700.00 | Window Closed / Lapsed |