US3306738A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aluminium alloys
Assignee: Alcan Research and Development Ltd
•
Filing: 1964-02-03
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Granted: 1967-02-28
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Expires: 1984-02-03
Abstract
No abstract record available.
Inventors
- 👤 Young George Macdonald
- 👤 David C Sunnucks
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:17
CPC Classifications
C; C22; C22C; C22C21/00; C22C21/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
61 words
AN ALUMINIUM ALLOY CONSISTING ESSENTIALLY OF: (A) SILICON, ABOUT 10-17%; (B) COBALT, ABOUT 0.01-5%; (C) COPPER, ABOUT 0.5-5%; (D) MANGANESE, UP TO 1%; (E) CHROMIUM, UP TO 1%; (F) MAGNESIUM, UP TO 2%; (G) NICKEL, UP TO 10%; (H) ALUMINIUM AND INCIDENTAL IMPURITIES, THE BALANCE; (I) SAID ALLOY BEING CHARACTERIZED BY THE PRIMARY SLICON PARTICLES BEING BELOW 50 MICRONS IN SIZE.
Claim 2
Dependent Claim
61 words
AN ALUMINIUM ALLOY CONSISTING ESSENTIALLY OF: (A) SILICON, ABOUT 10-17%; (B) COBALT, ABOUT 0.01-5%; (C) COPPER, ABOUT 0.5-5%; (D) MANGANESE, UP TO 1%; (E) CHROMIUM, UP TO 1%; (F) MAGNESIUM, UP TO 2%; (G) NICKEL, UP TO 10%; (H) ALUMINIUM AND INCIDENTAL IMPURITIES, THE BALANCE; (I) SAID ALLOY BEING CHARACTERIZED BY THE PRIMARY SLICON PARTICLES BEING BELOW 50 MICRONS IN SIZE.
References Cited (Backward Citations)
US1595219A
Cited
US2357450A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-02-27 | 1970-08-29 | 1971-02-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-27 | 1974-08-29 | 1975-02-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-27 | 1978-08-29 | 1979-02-28 | $7700.00 | Window Closed / Lapsed |