Patent US4579761A successfully refreshed from Google Patents.
US4579761A
Expired / Lapsed
US
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Method of making aureate colored coins, medallions and tokens and products so made
Assignee: Westaim Corp
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Filing: 1985-07-31
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Granted: 1986-04-01
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Expires: 2005-07-31
Abstract
Abstract An aureate coin, coin blank, medallion, medallion blank, token or token blank has a coin-shaped core with opposed faces and a peripheral side edge and of mintable metallic material. An electroplated coating of copper and tin completely encases the core and provides a golden appearance. The electroplated coating contains from about 8 to about 16% tin by weight and has a thickness of from about 10 to about 150 μm.
Inventors
- 👤 Michael J. H. Ruscoe
- 👤 Willie Seibt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 12:40
CPC Classifications
A; A44; A44C; A44C21/00; C; C25; C25D; C25D7/00; C25D7/005; C25D3/00; C25D3/02; C25D3/56; C25D3/58; Y; Y10; Y10T; Y10T428/00; Y10T428/12; Y10T428/12229; Y10T428/12236; Y10T428/12243; Y10T428/12493; Y10T428/12771; Y10T428/12785; Y10T428/12792; Y10T428/12861; Y10T428/12903; Y10T428/1291; Y10T428/21; Y10T428/216
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
143 words
A process for producing an aureate coin having mint deformed insignia on at least one face, comprising: providing a coin core blank of the desired size and shape having opposed faces and a peripheral side edge of a first metallic material which is soft enough to be readily deformed by coin dies during minting; electroplating said coin core blank with a coating of a second metallic material, which is harder than said first metallic material and not readily deformed by coin dies, to completely encase said coin core blank with a coating having a face thickness from about 10 to about 150 μm, said second metallic material comprising about 8 to about 16% tin by weight, with the balance copper; and forming insignia on said at least one face of the plated blank by at least one coin die deforming the surface thereof.
Claim 2
Dependent Claim
143 words
A process for producing an aureate coin having mint deformed insignia on at least one face, comprising: providing a coin core blank of the desired size and shape having opposed faces and a peripheral side edge of a first metallic material which is soft enough to be readily deformed by coin dies during minting; electroplating said coin core blank with a coating of a second metallic material, which is harder than said first metallic material and not readily deformed by coin dies, to completely encase said coin core blank with a coating having a face thickness from about 10 to about 150 μm, said second metallic material comprising about 8 to about 16% tin by weight, with the balance copper; and forming insignia on said at least one face of the plated blank by at least one coin die deforming the surface thereof.
Claim 3
Dependent Claim
18 words
The process of claim 1, including the step of softening the coin blank by annealing prior to plating.
Claim 4
Dependent Claim
24 words
The process of claim 1, including the step of softening the coin blank by annealing after plating and prior to forming the insignia thereon.
Claim 5
Dependent Claim
10 words
An electroplated coin produced by the process of claim 1.
Claim 6
Dependent Claim
115 words
An electroplated aureate coin having insignia on at least one face formed by minting, comprising: a coin core blank having opposed faces and a peripheral side edge of a first metallic material which is soft enough to be deformed by coin dies during minting; and an electroplated coating of a second metallic material completely encasing said blank, said coating being of a material which, by itself, is not soft enough to be deformed by coin dies and contains from about 8 to about 16% tin by weight, with the balance copper, and having a face thickness of from about 10 to about 150 μm, said insignia being formed by minting after the coating is electroplated.
Claim 7
Dependent Claim
115 words
An electroplated aureate coin having insignia on at least one face formed by minting, comprising: a coin core blank having opposed faces and a peripheral side edge of a first metallic material which is soft enough to be deformed by coin dies during minting; and an electroplated coating of a second metallic material completely encasing said blank, said coating being of a material which, by itself, is not soft enough to be deformed by coin dies and contains from about 8 to about 16% tin by weight, with the balance copper, and having a face thickness of from about 10 to about 150 μm, said insignia being formed by minting after the coating is electroplated.
Claim 8
Dependent Claim
24 words
The coin of claim 5, in which the electroplated coating contains from about 11 to about 14% tin by weight, and the balance copper.
Claim 9
Dependent Claim
22 words
The coin of claim 5, in which the face thickness of the electroplated coating is from about 30 to about 50 μm.
Claim 10
Dependent Claim
26 words
The coin of claim 5, in which the weight of the electroplated coating is from about 2 to about 26% of the weight of the coin.
Claim 11
Dependent Claim
26 words
The coin of claim 8, in which the weight of the electroplated coating is from about 6 to about 10% of the weight of the coin.
Claim 12
Dependent Claim
17 words
The coin of claim 5, in which the first metallic material comprises iron, steel or stainless steel.
Claim 13
Dependent Claim
16 words
The coin of claim 5, in which the first metallic material comprises nickel or nickel alloy.
Claim 14
Dependent Claim
16 words
The coin of claim 5, in which the first metallic material comprises zinc or zinc alloy.
Claim 15
Dependent Claim
18 words
The coin of claim 5, in which the first metallic material comprises a copper or copper alloy composition.
Claim 16
Dependent Claim
16 words
The coin of claim 5, in which the first metallic material comprises aluminum or aluminum alloy.
Claim 17
Dependent Claim
18 words
The coin of claim 5, in which the first and second metallic materials are metallurgically bonded by interdiffusion.
References Cited (Backward Citations)
CH191288A
Cited
US3108006A
Cited
GB1210180A
Cited
GB1276272A
Cited
US3834879A
Cited
US4089753A
Cited
US4176014A
Cited
US4247374A
Cited
US4401488A
Cited
US4436790A
Cited
GB2102708A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-03-31 | 1989-09-30 | 1990-04-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-03-31 | 1993-09-30 | 1994-04-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-03-31 | 1997-09-30 | 1998-04-01 | $7700.00 | Window Closed / Lapsed |