US2584772A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aluminum base alloys
Assignee: WILLIAM F JOBBINS Inc
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Filing: 1949-05-10
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Granted: 1952-02-05
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Expires: 1969-05-10
Abstract
No abstract record available.
Inventors
- 👤 Charles B Willmore
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 23:05
CPC Classifications
C; C22; C22C; C22C21/00; C22C21/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
45 words
AN ALUMINUM BASE CASTING ALLOY CONSISTING ESSENTIALLY OF 2-4 PERCENT COPPER, 2-8 PERCENT ZINC, 2-8 PERCENT SILICON, 0.2-1.0 PERCENT MAGNESIUM, 0.05-0.3 PERCENT ZIRCONIUM, A METAL SELECTED FROM THE GROUP CONSISTING OF 0.10-0.5 PERCENT CHROMIUM AND 0.15-0.8 PERCENT MANGANESE AND MIXTURES THEREOF, THE BALANCE BEING ALUMINUM.
Claim 2
Dependent Claim
45 words
AN ALUMINUM BASE CASTING ALLOY CONSISTING ESSENTIALLY OF 2-4 PERCENT COPPER, 2-8 PERCENT ZINC, 2-8 PERCENT SILICON, 0.2-1.0 PERCENT MAGNESIUM, 0.05-0.3 PERCENT ZIRCONIUM, A METAL SELECTED FROM THE GROUP CONSISTING OF 0.10-0.5 PERCENT CHROMIUM AND 0.15-0.8 PERCENT MANGANESE AND MIXTURES THEREOF, THE BALANCE BEING ALUMINUM.
References Cited (Backward Citations)
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Cited
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Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-02-04 | 1955-08-06 | 1956-02-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-02-04 | 1959-08-06 | 1960-02-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-02-04 | 1963-08-06 | 1964-02-05 | $7700.00 | Window Closed / Lapsed |