US2908566A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aluminum base alloy
Assignee: North American Aviation Corp
•
Filing: 1956-06-01
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Granted: 1959-10-13
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Expires: 1976-06-01
Abstract
No abstract record available.
Inventors
- 👤 Roger G Cron
- 👤 Romeo A Zuech
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 19:15
CPC Classifications
C; C22; C22C; C22C21/00; C22C21/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
29 words
AN ALUMINUM BASE ALLOY CONSISTING OF SILICON IN AMOUNT RANGING FROM 6% TO 10%, 0.2% TO 0.6% MAGNESIUM, 0.05% TO 0.5% OF BERYLLIUM, AND THE REMAINDER ESSENTIALLY OF ALUMINUM.
Claim 2
Dependent Claim
29 words
AN ALUMINUM BASE ALLOY CONSISTING OF SILICON IN AMOUNT RANGING FROM 6% TO 10%, 0.2% TO 0.6% MAGNESIUM, 0.05% TO 0.5% OF BERYLLIUM, AND THE REMAINDER ESSENTIALLY OF ALUMINUM.
References Cited (Backward Citations)
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Cited
GB652636A
Cited
US2525130A
Cited
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Cited
US2565768A
Cited
US2602413A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-10-12 | 1963-04-13 | 1963-10-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-10-12 | 1967-04-13 | 1967-10-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-10-12 | 1971-04-13 | 1971-10-13 | $7700.00 | Window Closed / Lapsed |