Patent US4238233A successfully refreshed from Google Patents.
US4238233A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aluminum alloy for cladding excellent in sacrificial anode property and erosion-corrosion resistance
Assignee: MA Aluminum Corp
•
Filing: 1979-04-19
•
Granted: 1980-12-09
•
Expires: 1999-04-19
Abstract
Abstract An aluminum alloy for cladding excellent in sacrificial anode property and erosion-corrosion resistance, which consists essentially of, in weight percentage: Zinc: from 0.3 to 3.0%, Magnesium: from 0.2 to 4.0%, Manganese: from 0.3 to 2.0%, and, the balance aluminum and incidental impurities; said alloy including an aluminum alloy also containing at least one element selected from the group consisting of, in weight percentage: Indium: from 0.005 to 0.2%, Tin: from 0.01 to 0.3%, and, Bismuth: from 0.01 to 0.3%; provided that the total content of indium, tin and bismuth being up to 0.3%.
Inventors
- 👤 Kazuo Yamada
- 👤 Koji Mikami
- 👤 Shigetake Imaizumi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 20:08
CPC Classifications
C; C22; C22C; C22C21/00; C22C21/06; C22C21/10; C23; C23F; C23F13/00; C23F13/02; C23F13/06; C23F13/08; C23F13/12; C23F13/14; F; F24; F24S; F24S40/00; F24S40/40; F28; F28F; F28F19/00; F28F19/02; F28F19/06; F28F21/00; F28F21/08; F28F21/081; F28F21/084; Y; Y02; Y02E; Y02E10/00; Y02E10/40
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
75 words
An aluminum alloy for cladding excellent in sacrificial anode property and erosion-corrosion resistance, which consists essentially of, in weight percentage: zinc: from 0.3 to 3.0%, magnesium: from 0.2 to 2.5%, manganese: from 0.3 to 2.0%, at least one element from the group consisting of tin and bismuth each in an amount from 0.01 to 0.3% provided that the total content of tin and bismuth does not exceed 0.3% and, the balance aluminum and incidental impurities.
Claim 2
Dependent Claim
75 words
An aluminum alloy for cladding excellent in sacrificial anode property and erosion-corrosion resistance, which consists essentially of, in weight percentage: zinc: from 0.3 to 3.0%, magnesium: from 0.2 to 2.5%, manganese: from 0.3 to 2.0%, at least one element from the group consisting of tin and bismuth each in an amount from 0.01 to 0.3% provided that the total content of tin and bismuth does not exceed 0.3% and, the balance aluminum and incidental impurities.
References Cited (Backward Citations)
US2184693A
Cited
US4141725A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-12-09 | 1984-06-09 | 1984-12-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-12-09 | 1988-06-09 | 1988-12-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-12-09 | 1992-06-09 | 1992-12-09 | $7700.00 | Window Closed / Lapsed |