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Patent US2864138A successfully refreshed from Google Patents.
US2864138A
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Unloading means for centrifugal casting chuck
Assignee: Textron American Inc
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Filing: 1952-02-08
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Granted: 1958-12-16
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Expires: 1972-02-08
Abstract
No abstract record available.
Inventors
- 👤 Albert D Pierce
- 👤 Fredrick A Wagner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 15:32
CPC Classifications
B; B22; B22D; B22D13/00; B22D13/10; B22D13/108
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US407161A
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US1479809A
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US1917872A
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US1899595A
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US1977220A
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US2206267A
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US2207179A
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US2362132A
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US2499209A
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US2451975A
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US2556382A
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US2507753A
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US2657440A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-12-15 | 1962-06-16 | 1962-12-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-12-15 | 1966-06-16 | 1966-12-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-12-15 | 1970-06-16 | 1970-12-16 | $7700.00 | Window Closed / Lapsed |