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US2537270A
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US
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Assignee: W H MINER Inc
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Filing: 1946-01-25
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Granted: 1951-01-09
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Expires: 1966-01-25
Abstract
No abstract record available.
Inventors
- 👤 Stacy B Haseltine
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 10:36
CPC Classifications
B; B61; B61H; B61H13/00; B61H13/02; B61H13/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
FR395413A
Cited
US1328493A
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US1439390A
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US1879973A
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US1994657A
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US1980686A
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US2179674A
Cited
US2431750A
Cited
US2427389A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-01-08 | 1954-07-10 | 1955-01-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-01-08 | 1958-07-10 | 1959-01-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-01-08 | 1962-07-10 | 1963-01-09 | $7700.00 | Window Closed / Lapsed |