Patent US4546049A successfully refreshed from Google Patents.
US4546049A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ornamental composite of a metal alloy surrounding a mineral powder core for use in spectacle frames
Assignee: Toshiba Corp
•
Filing: 1983-12-14
•
Granted: 1985-10-08
•
Expires: 2003-12-14
Abstract
Abstract An ornamental composite material has a covering of an Ni-, Au-, Ag- or Cu-base alloy, and a core of a mineral powder aggregate. A layer of a metal different from the metals of the alloy of the covering can be clad on the inner surface of the covering as needed. The ornamental composite material is preferably used for various parts of a spectacle frame.
Inventors
- 👤 Takashi Kuze
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 23:33
CPC Classifications
G; G02; G02C; G02C5/00; G02C11/00; G02C11/02; Y; Y10; Y10T; Y10T428/00; Y10T428/12; Y10T428/12007; Y10T428/12486; Y10T428/12493; Y10T428/12535; Y10T428/12576; Y10T428/12611; Y10T428/12771; Y10T428/12861; Y10T428/12882; Y10T428/12889; Y10T428/12896; Y10T428/12903; Y10T428/12944
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
40 words
An ornamental composite material comprising a covering made of material selected from the group consisting of a nickel-base alloy, a gold-base alloy, a silver-based alloy and a copper-base alloy; and a core consisting of an aggregate of a mineral powder.
Claim 2
Dependent Claim
40 words
An ornamental composite material comprising a covering made of material selected from the group consisting of a nickel-base alloy, a gold-base alloy, a silver-based alloy and a copper-base alloy; and a core consisting of an aggregate of a mineral powder.
Claim 3
Dependent Claim
30 words
A material according to claim 1, wherein a layer of a metal different from metals of the alloy of said covering is clad on an inner surface of said covering.
Claim 4
Dependent Claim
15 words
A material according to claim 1, wherein a reinforcing material is embedded in said aggregate.
Claim 5
Dependent Claim
15 words
A material according to claim 2, wherein a reinforcing material is embedded in said aggregate.
Claim 6
Dependent Claim
31 words
A material according to claim 1, wherein a mineral of the mineral powder is a member selected from the group consisting of a metal, an oxide, a nitride, and a carbide.
Claim 7
Dependent Claim
26 words
A material according to claim 3, wherein the reinforcing material is a member selected from the group consisting of a metal wire and a metal fiber.
Claim 8
Dependent Claim
26 words
A material according to claim 4, wherein the reinforcing material is a member selected from the group consisting of a metal wire and a metal fiber.
Claim 9
Dependent Claim
18 words
A material according to claim 1, wherein the ornamental composite material forms a part of a spectacle frame.
Claim 10
Dependent Claim
32 words
A material according to claim 1, wherein the covering comprises 5 to 95% of a combined sectional area of the covering and the core in a section of the ornamental composite material.
Claim 11
Dependent Claim
32 words
A material according to claim 1, wherein the core comprises 5 to 95% of a combined sectional area of the covering and the core in a section of the ornamental composite material.
Claim 12
Dependent Claim
18 words
A material according to claim 1, wherein the covering and the core are formed integrally by plastic deformation.
Claim 13
Dependent Claim
29 words
A material according to claim 1, wherein a mineral of the mineral powder is a member selected from the group consisting of an oxide, a nitride, and a carbide.
References Cited (Backward Citations)
US3352650A
Cited
US3447913A
Cited
US3529655A
Cited
US3455662A
Cited
US3535093A
Cited
US3691623A
Cited
US3938964A
Cited
US4427746A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-10-07 | 1989-04-08 | 1989-10-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-10-07 | 1993-04-08 | 1993-10-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-10-07 | 1997-04-08 | 1997-10-08 | $7700.00 | Window Closed / Lapsed |