Patent US3210646A successfully refreshed from Google Patents.
Patent US2846775A successfully refreshed from Google Patents.
US2846775A
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Method of contacting granular solids with gaseous fluids
Assignee: FMC Corp
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Filing: 1954-01-08
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Granted: 1958-08-12
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Expires: 1974-01-08
Abstract
No abstract record available.
Inventors
- 👤 Wesley N Lindsay
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 09:40
CPC Classifications
B; B01; B01J; B01J8/00; B01J8/18; B01J8/1881; B01J8/189; B01J8/24; B01J8/32
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2348418A
Cited
US2345487A
Cited
US2473539A
Cited
US2497501A
Cited
US2578377A
Cited
US2724190A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-08-11 | 1962-02-10 | 1962-08-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-08-11 | 1966-02-10 | 1966-08-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-08-11 | 1970-02-10 | 1970-08-12 | $7700.00 | Window Closed / Lapsed |