US3314829A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High strength pressure die casting alloy
Assignee: Alcan Research and Development Ltd
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Filing: 1964-01-13
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Granted: 1967-04-18
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Expires: 1984-01-13
Abstract
No abstract record available.
Inventors
- 👤 David C Sunnucks
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 20:31
CPC Classifications
C; C22; C22C; C22C21/00; C22C21/06; C22C21/08; C22C21/02; C22C21/12
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
65 words
AN ARTICLE OF MANUFACTURE COMPRISING A PRESSURE DIE CAST STRUCTURAL CONFIGURATION OF ALUMINUM ALLOY CONSISTING OF COPPER, ABOUT 3.0-4.0 WEIGHT PERCENT, IRON, ABOUT 0.71.2 WEIGHT PERCENT; MANGNESIUM, ABOUT 0.4-0.8 WEIGHT PERCENT; SILICON, ABOUT 7.5-9.5 WEIGHT PERCENT; ZINC, ABOUT 0.5-1.2 WEIGHT PERCENT; AND THE REMAINDER ESSENTIALLY ONLY ALUMINUM, WHICH STRUCTURE HAS BEEN AGED AT A TEMPERATURE OF ABOUT 150*-170*C. FOR A TIME OF ABOUT 4-8 HOURS.
References Cited (Backward Citations)
US2823995A
Cited
US2584772A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-04-17 | 1970-10-17 | 1971-04-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-04-17 | 1974-10-17 | 1975-04-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-04-17 | 1978-10-17 | 1979-04-18 | $7700.00 | Window Closed / Lapsed |