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Patent US2443854A successfully refreshed from Google Patents.
US2443854A
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Fluidized-solid process for forming carbon disulfide
Assignee: Standard Oil Development Co
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Filing: 1943-03-06
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Granted: 1948-06-22
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Expires: 1963-03-06
Abstract
No abstract record available.
Inventors
- 👤 Robert P Ferguson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 15:37
CPC Classifications
B; B01; B01J; B01J8/00; B01J8/18; B01J8/24; B01J8/26; B01J8/28; C; C01; C01B; C01B32/00; C01B32/70; Y; Y02; Y02P; Y02P20/00; Y02P20/10; Y02P20/129
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1810055A
Cited
US1511875A
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US1984380A
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US2052297A
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US2289329A
Cited
US2325192A
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US2345487A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-06-22 | 1951-12-22 | 1952-06-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-06-22 | 1955-12-22 | 1956-06-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-06-22 | 1959-12-22 | 1960-06-22 | $7700.00 | Window Closed / Lapsed |