Patent US2805848A successfully refreshed from Google Patents.
US2805848A
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Apparatus for treating agglomerates
Assignee: HOUIILERES DU BASSIN DU NORD ETS
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Filing: 1953-01-21
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Granted: 1957-09-10
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Expires: 1973-01-21
Abstract
No abstract record available.
Inventors
- 👤 Guigon Jean
- 👤 Carabasse Joseph
- 👤 Salmon Jacques
- 👤 Matis Ernest
- 👤 Nobecourt Claude
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:13
CPC Classifications
C; C10; C10B; C10B7/00; C10B7/14
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1330366A
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US1294756A
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US1505768A
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US1682680A
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US1727192A
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US1704280A
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US2386835A
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US2573019A
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US2678205A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-09-09 | 1961-03-11 | 1961-09-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-09-09 | 1965-03-11 | 1965-09-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-09-09 | 1969-03-11 | 1969-09-10 | $7700.00 | Window Closed / Lapsed |