US3079252A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Copper-base alloys
Assignee: J Stone & Co (propellers) Ltd
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Filing: 1961-01-09
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Granted: 1963-02-26
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Expires: 1981-01-09
Abstract
No abstract record available.
Inventors
- 👤 Webb Alfred William Owen
- 👤 Southin Roy Thomas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 10:48
CPC Classifications
C; C22; C22C; C22C9/00; C22C9/05
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
81 words
A COPPER-BASE ALLOY HAVING A BASICALLY DEPLEX CHARACTER, COMSISTING MAINLY OF AN ALPHA PAHSE AND A BETA PHASE AND CONSISTING ESSENTIALLY OF MORE THAN 15% AND UP TO 35% MAGNGANESE, 3.5 TO 9.5% OF ALUMINIUM, 2 TO 4% OF IRON, AND 1 TO 6% OF NICKEL, THE ALUMINIUMEQUIVALENT OF THE ALUMINUM AND THE MANGANESE PRESENT LYING WITHIN THE RANGE 9 TO 12% WHERE THE ALUMINUMEQUIVALENT OF MANGANESE IS 0.16, AND HAVING A CARBON CONTENT AS AN IMPURITY OF LESS THAN 0.02%.
Claim 2
Dependent Claim
81 words
A COPPER-BASE ALLOY HAVING A BASICALLY DEPLEX CHARACTER, COMSISTING MAINLY OF AN ALPHA PAHSE AND A BETA PHASE AND CONSISTING ESSENTIALLY OF MORE THAN 15% AND UP TO 35% MAGNGANESE, 3.5 TO 9.5% OF ALUMINIUM, 2 TO 4% OF IRON, AND 1 TO 6% OF NICKEL, THE ALUMINIUMEQUIVALENT OF THE ALUMINUM AND THE MANGANESE PRESENT LYING WITHIN THE RANGE 9 TO 12% WHERE THE ALUMINUMEQUIVALENT OF MANGANESE IS 0.16, AND HAVING A CARBON CONTENT AS AN IMPURITY OF LESS THAN 0.02%.
References Cited (Backward Citations)
US2715577A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-02-25 | 1966-08-27 | 1967-02-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-02-25 | 1970-08-27 | 1971-02-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-02-25 | 1974-08-27 | 1975-02-26 | $7700.00 | Window Closed / Lapsed |