US3561954A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aluminum-base alloys
Assignee: Fulmer Research Institute Ltd
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Filing: 1968-02-19
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Granted: 1971-02-09
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Expires: 1988-02-19
Abstract
Abstract AN ALUMINIUM BASE ALLOY IS DISCLOSED WHICH CONTAINS GERMANIUM, MAGNESIUM AND COPPER. PREFERABLY, THE ALLOY COMPRISES 0.02% TO 0.25% GERMANIUM, 0.1% TO 0.5% MAGNESIUM, AND 4.0% TO 6.5% COPPER, WITH IF DESIRED UP TO 0.5% SILICON, UP TO 1% MANGANESE AND UP TO 0.5% IRON.
Inventors
- 👤 Greville B Brook
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 21:05
CPC Classifications
C; C22; C22C; C22C21/00
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) | 1974-02-08 | 1974-08-10 | 1975-02-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-08 | 1978-08-10 | 1979-02-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-08 | 1982-08-10 | 1983-02-09 | $7700.00 | Window Closed / Lapsed |