US3726672A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aluminum base alloy diecasting composition
Assignee: US REDUCTION ACQUISTION CORP A CORP OF DE
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Filing: 1970-10-30
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Granted: 1973-04-10
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Expires: 1990-10-30
Abstract
Abstract AN ALUMINUM BASE ALLOY AND AN AUTOMOBILE WHEEL DIECAST THEREFROM, THE ALLOY CONSISTING ESSENTIALLY OF ALUMINUM AND BY WEIGHT PERCENTAGE OF THE TOTAL COMPOSITION, MAGNESIUM 0.25 TO 0.6%, COPPER 0.25 TO 0.6%, IRON 0.5 TO 1.5%, SILICON 11 TO 13.5% CHROMIUM 0.25 TO 0.4%, A MAXIMUM OF 3% ZINC, A MAXIMUM OF 0.5% MANGANESE AND A MAXIMUM OF 0.2% OF EACH OF ITANIUM, NICKEL, TIN AND LEAD.
Inventors
- 👤 R Lindberg
- 👤 G Armstrong
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 14:56
CPC Classifications
C; C22; C22C; C22C21/00; C22C21/02; Y; Y10; Y10T; Y10T74/00; Y10T74/20; Y10T74/20576; Y10T74/20732; Y10T74/20834
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-04-09 | 1976-10-09 | 1977-04-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-04-09 | 1980-10-09 | 1981-04-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-04-09 | 1984-10-09 | 1985-04-10 | $7700.00 | Window Closed / Lapsed |