US3824083A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Clad composites and aluminous metal compositions for cladding
Assignee: Reynolds Metals Co
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Filing: 1971-06-01
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Granted: 1974-07-16
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Expires: 1991-06-01
Abstract
Abstract COMPOSITE ARTICLES HAVING A CORE AND CLADDING COMPOSED OF HEAT-TREATABLE ALUMINUM BASE ALLOYS, IN PARTICULAR A CORE ALLOY CONTAINING ZINC, MAGNESIUM AND COPPER AS THE PRINCIPAL ALLOWING ELEMENTS, CLAD WITH AN ALLOY CONTAINING ABOUT 4-5.5% zINC AND ABOUT 1-1.6% MAGNESIUM, AND IMPROVED CLADING ALLOYS OF THAT TYPE.
Inventors
- 👤 T Fritzlen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 02:22
CPC Classifications
B; B32; B32B; B32B15/00; B32B15/01; B32B15/016; Y; Y10; Y10S; Y10S428/00; Y10S428/922; Y10S428/9265; Y10S428/931; Y10S428/933; 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) | 1977-07-15 | 1978-01-14 | 1978-07-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-07-15 | 1982-01-14 | 1982-07-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-07-15 | 1986-01-14 | 1986-07-16 | $7700.00 | Window Closed / Lapsed |