US3595631A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composite aluminum alloy
Assignee: Olin Corp
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Filing: 1968-11-01
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Granted: 1971-07-27
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Expires: 1988-11-01
Abstract
Abstract THE DISCLOSURE TEACHES A COMPOSITE ALUMINUM ALLOY HAVING HIGH STRENGTH AND GOOD BRIGHT ANODIZING CHARACTERISTICS. THE CORE IS AN ALUMINUM BASE ALLOY CONTAINING FROM 2 TO 10% MAGNESIUM, AND THE CLADDING IS AN ALUMINUM BASE ALLOY CONTAINING FROM 0.01 TO 2.5% MANGESIUM.
Inventors
- 👤 Irwin Broverman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 11:16
CPC Classifications
C; C22; C22C; C22C21/00; C22C21/06; B; B32; B32B; B32B15/00; B32B15/01; B32B15/016; Y; Y10; Y10S; Y10S428/00; Y10S428/922; Y10S428/923; Y10S428/924; Y10S428/925; Y10T; Y10T428/00; Y10T428/12; Y10T428/12493; Y10T428/12736; Y10T428/12764
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-07-26 | 1975-01-25 | 1975-07-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-07-26 | 1979-01-25 | 1979-07-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-07-26 | 1983-01-25 | 1983-07-27 | $7700.00 | Window Closed / Lapsed |