US3607150A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gold-filled metal for jewelry manufacture
Assignee: ROBERT P BEEKMAN
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Filing: 1968-12-30
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Granted: 1971-09-21
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Expires: 1988-12-30
Abstract
Abstract A nickel alloy base layer, consisting substantially of copper 65 percent, nickel in the range of 10 to 18 percent and the balance zinc, has a thin, substantially pure nickel backing bonded on one side. On the other side is carried a layer of gold of suitable karat, with or without the interposition of another thinner layer of substantially pure nickel bonded between the base and to the gold to form an interliner. The interliner is used when the nickel alloy consists of nickel substantially in the range of 10 to 14 percent. The interliner is omitted when the nickel alloy consists of nickel substantially in the range of 15 to 18 percent. Bonding is performed in the solid phase by rolling.
Inventors
- 👤 Thomas E Mcginn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 23:02
CPC Classifications
B; B32; B32B; B32B15/00; B32B15/01; B32B15/018; B23; B23K; B23K20/00; B23K20/04; Y; Y10; Y10S; Y10S428/00; Y10S428/922; Y10S428/923; Y10S428/924; Y10S428/926; Y10T; Y10T428/00; Y10T428/12; Y10T428/12493; Y10T428/12771; Y10T428/12861; Y10T428/12889; Y10T428/12903; Y10T428/1291
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
42 words
A composite according to claim 1 wherein the total thickness of the composite is in the range of approximately 0.008 inch to 0.012 inch, and the minimum thicknesses of the nickel backing layer and of the gold layer are approximately 0.001 inch.
Claim 2
Dependent Claim
71 words
Composite gold-filled metal, comprising an alloy base which consists of nickel in the range of approximately 10 to 14 percent, copper on the order of 65 percent and the balance zinc, a substantially pure nickel backing bonded to one side of said base, a layer of gold on the other side of the base and a substantially pure nickel interliner between the base and the gold layer are bonded to each.
Claim 3
Dependent Claim
49 words
Gold-filled metal according to claim 3 wherein the total thickness of the composite is in the range of 0.008 inch to 0.012 inch, the minimum thicknesses of the nickel backing and gold facing are approximately 0.001 inch and the minimum thickness of said nickel interliner is approximately 0.001 inch.
Claim 4
Dependent Claim
52 words
Composite gold-filled metal, comprising an alloy base which consists of nickel in the range of approximately 15 to 18 percent, copper 65 percent and the balance zinc, a substantially pure nickel backing bonded on one side of said base, and a layer of gold bonded to the other side of the base.
Claim 5
Dependent Claim
40 words
Gold-filled metal according to claim 5 wherein the total thickness of the composite is approximately in the range of 0.008 inch to 0.012 inch, and the minimum thickness of the nickel-backing layer and of the gold layer are 0.001 inch.
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) | 1974-09-20 | 1975-03-22 | 1975-09-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-20 | 1979-03-22 | 1979-09-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-20 | 1983-03-22 | 1983-09-21 | $7700.00 | Window Closed / Lapsed |