Patent US1428692A successfully refreshed from Google Patents.
Patent US2744812A successfully refreshed from Google Patents.
US2744812A
Expired / Lapsed
US
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Combination of a furnace for the incineration of residual liquor with means for disintegrating solids entrained in said liquor
Assignee: Babcock and Wilcox Co
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Filing: 1949-12-01
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Granted: 1956-05-08
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Expires: 1969-12-01
Abstract
No abstract record available.
Inventors
- 👤 Jr James H Coulter
- 👤 Frank E Hutton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 13:41
CPC Classifications
D; D21; D21C; D21C11/00; D21C11/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2303811A
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US2421066A
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US2593503A
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US2495248A
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US2496017A
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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) | 1959-05-08 | 1959-11-07 | 1960-05-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-05-08 | 1963-11-07 | 1964-05-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-05-08 | 1967-11-07 | 1968-05-08 | $7700.00 | Window Closed / Lapsed |