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US2469912A
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Assignee: American Steel Foundries
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Filing: 1944-05-26
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Granted: 1949-05-10
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Expires: 1964-05-26
Abstract
No abstract record available.
Inventors
- 👤 Fred E Bachman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 10:23
CPC Classifications
B; B64; B64C; B64C25/00; B64C25/32; B64C25/58; B64C25/60
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2039135A
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US1956668A
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GB375205A
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US2095112A
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US2156117A
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US2222845A
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US2148497A
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US2186011A
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US2212541A
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US2224306A
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US2363308A
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GB637666A
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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) | 1952-05-09 | 1952-11-08 | 1953-05-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-05-09 | 1956-11-08 | 1957-05-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-05-09 | 1960-11-08 | 1961-05-10 | $7700.00 | Window Closed / Lapsed |