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US2851760A
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US
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Patching of by-product coke oven tubular surfaces
Assignee: ALAN WOOD STEEL CO
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Filing: 1954-03-15
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Granted: 1958-09-16
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Expires: 1974-03-15
Abstract
No abstract record available.
Inventors
- 👤 Taylor Harold Ernest
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:18
CPC Classifications
C; C10; C10B; C10B29/00; C10B29/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB190406507A
Cited
GB142419A
Cited
US1736293A
Cited
US2504185A
Cited
US2618014A
Cited
US2564009A
Cited
US2763910A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-09-15 | 1962-03-17 | 1962-09-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-09-15 | 1966-03-17 | 1966-09-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-09-15 | 1970-03-17 | 1970-09-16 | $7700.00 | Window Closed / Lapsed |