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Patent US2465094A successfully refreshed from Google Patents.
US2465094A
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Binder composition for sand cores
Assignee: Swan Finch Oil Corp
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Filing: 1947-05-06
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Granted: 1949-03-22
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Expires: 1967-05-06
Abstract
No abstract record available.
Inventors
- 👤 Carl E Hartwig
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 13:56
CPC Classifications
B; B22; B22C; B22C1/00; B22C1/16; B22C1/167
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) | 1952-03-21 | 1952-09-20 | 1953-03-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-03-21 | 1956-09-20 | 1957-03-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-03-21 | 1960-09-20 | 1961-03-22 | $7700.00 | Window Closed / Lapsed |