Patent US3528479A successfully refreshed from Google Patents.
US3528479A
Expired / Lapsed
US
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Control system for regulating flow of molten metal into a continuously rotated casting wheel
Assignee: AT&T Inc
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Filing: 1967-07-07
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Granted: 1970-09-15
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Expires: 1987-07-07
Abstract
No abstract record available.
Inventors
- 👤 Joseph I Cole
- 👤 William C Martin
- 👤 Stephen F Skala
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 06:58
CPC Classifications
B; B22; B22D; B22D11/00; B22D11/16; B22D11/18; B22D11/181; B22D11/187; B22D11/06; B22D11/0637; B22D11/064; G; G05; G05D; G05D7/00; G05D7/06; G05D7/0617; G05D7/0629; G05D7/0635
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-09-14 | 1974-03-16 | 1974-09-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-09-14 | 1978-03-16 | 1978-09-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-09-14 | 1982-03-16 | 1982-09-15 | $7700.00 | Window Closed / Lapsed |