Patent US2455092A successfully refreshed from Google Patents.
US2455092A
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Apparatus for reacting finely divided solid material and a gas
Assignee: Brassert & Co
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Filing: 1943-12-11
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Granted: 1948-11-30
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Expires: 1963-12-11
Abstract
No abstract record available.
Inventors
- 👤 Charles F Ramseyer
- 👤 Herman A Brassert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 16:39
CPC Classifications
C; C21; C21B; C21B13/00; C21B13/10; C21B13/105; C22; C22B; C22B1/00; C22B1/02; C22B1/10; Y; Y02; Y02P; Y02P10/00; Y02P10/10; Y02P10/134; Y10; Y10S; Y10S75/00; Y10S75/962
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US83430A
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US243297A
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US669411A
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US1620593A
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DE506544C
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US2270903A
Cited
US2296522A
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US2316664A
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US2287663A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-11-30 | 1952-05-31 | 1952-11-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-11-30 | 1956-05-31 | 1956-11-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-11-30 | 1960-05-31 | 1960-11-30 | $7700.00 | Window Closed / Lapsed |