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Patent US3001652A successfully refreshed from Google Patents.
US3001652A
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US
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Apparatus for feeding finely divided solids
Assignee: Fossil Fuels Inc
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Filing: 1958-10-24
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Granted: 1961-09-26
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Expires: 1978-10-24
Abstract
No abstract record available.
Inventors
- 👤 Wilburn C Schroeder
- 👤 Harold D Levene
- 👤 Thomas G Stephenson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 20:00
CPC Classifications
B; B01; B01J; B01J8/00; B01J8/0015; B01J8/002; B01F; B01F35/00; B01F35/71; B01F35/711; B01J3/00; B01J3/02; Y; Y10; Y10S; Y10S48/00; Y10S48/04
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) | 1964-09-25 | 1965-03-27 | 1965-09-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-09-25 | 1969-03-27 | 1969-09-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-09-25 | 1973-03-27 | 1973-09-26 | $7700.00 | Window Closed / Lapsed |