US4401488A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gold-colored coin material
Assignee: VEREINIGTE DEUTSCH METALLWERKE AG ZEILWEG D-6000 FRANKFURT AM MAIN A CORP OF GERMANY
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Filing: 1982-04-22
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Granted: 1983-08-30
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Expires: 2002-04-22
Abstract
Abstract An alloy useful as a coinage alloy, especially as a cladding for a coin comprising a core and a cladding is disclosed. The alloy consists essentially of 4 to 6% nickel, 4 to 6% aluminum, balance copper and inevitable impurities which are due to the manufacture. Also disclosed are coins made therefrom having a gold-like color.
Inventors
- 👤 Bruno Prinz
- 👤 Manfred B. Rockel
- 👤 Gunther Rudolph
- 👤 Ulrich Heubner
- 👤 Hugo Zoebe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 05:25
CPC Classifications
C; C22; C22C; C22C9/00; C22C9/01; C22C9/06; Y; Y10; Y10T; Y10T428/00; Y10T428/12; Y10T428/12493; Y10T428/12771; Y10T428/12861; Y10T428/12903; Y10T428/1291
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
34 words
A coin made of an alloy consisting essentially of 4 to 6 percent nickel, 4 to 6 percent aluminum, 0.5 to 1.8 percent iron, the balance being copper and inevitable impurities due to manufacture.
Claim 2
Dependent Claim
34 words
A coin made of an alloy consisting essentially of 4 to 6 percent nickel, 4 to 6 percent aluminum, 0.5 to 1.8 percent iron, the balance being copper and inevitable impurities due to manufacture.
Claim 3
Dependent Claim
12 words
A coin according to claim 1 containing 0.5 to 1.2 percent iron.
Claim 4
Dependent Claim
13 words
A coin according to claim 1 additionally containing 0.3 to 1.5 percent manganese.
Claim 5
Dependent Claim
13 words
A coin according to claim 2 additionally containing 0.3 to 1.5 percent manganese.
Claim 6
Dependent Claim
53 words
A coin according to claim 1 wherein said coin comprises a core and a cladding disposed on said core, said cladding comprises a copper base alloy consisting essentially of 4 to 6 percent nickel, 4 to 6 percent aluminum, 0.5 to 1.8 percent iron, the balance copper and inevitable impurities due to manufacture.
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) | 1986-08-29 | 1987-02-28 | 1987-08-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-08-29 | 1991-02-28 | 1991-08-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-08-29 | 1995-02-28 | 1995-08-30 | $7700.00 | Window Closed / Lapsed |