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US2810479A
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Material-deforming apparatus
Assignee: Alcoa Corp
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Filing: 1952-12-09
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Granted: 1957-10-22
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Expires: 1972-12-09
Abstract
No abstract record available.
Inventors
- 👤 Wallace E Forbes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 18:17
CPC Classifications
B; B21; B21C; B21C25/00; B21C25/04; B21D; B21D22/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US629610A
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US1165031A
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US1859753A
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US2198826A
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US1841396A
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US2359339A
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US2557582A
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US2535339A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-10-21 | 1961-04-22 | 1961-10-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-10-21 | 1965-04-22 | 1965-10-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-10-21 | 1969-04-22 | 1969-10-22 | $7700.00 | Window Closed / Lapsed |