Patent US3429654A successfully refreshed from Google Patents.
US3429654A
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Reacting gases or vapors in a fluidized bed
Assignee: BASF SE
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Filing: 1965-10-29
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Granted: 1969-02-25
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Expires: 1985-10-29
Abstract
No abstract record available.
Inventors
- 👤 Wilhelm Friedrichsen
- 👤 Anton Wegerich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 10:52
CPC Classifications
C; C07; C07C; C07C209/00; C07C209/30; C07C209/32; C07C209/36; B; B01; B01J; B01J19/00; B01J19/30; B01J8/00; B01J8/18; B01J8/24; B01J8/34; C07C37/00; C07C37/06; C07C45/00; C07C45/002; C07C45/27; C07C45/32; C07C45/37; C07C45/38; C07C5/00; C07C5/02; C07C5/10; C07C51/00; C07C51/16; C07C51/21; C07C51/255; C07C51/265; B01J2219/00; B01J2219/30; B01J2219/302; B01J2219/30207; B01J2219/304; B01J2219/30408; B01J2219/30416; C07C2601/00; C07C2601/12; C07C2601/14; Y; Y10; Y10S; Y10S261/00; Y10S261/72
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3210378A
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US2631921A
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US2664337A
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US2795629A
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US2783249A
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US3010806A
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US3086852A
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US3352887A
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US3205275A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-02-25 | 1972-08-26 | 1973-02-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-02-25 | 1976-08-26 | 1977-02-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-02-25 | 1980-08-26 | 1981-02-25 | $7700.00 | Window Closed / Lapsed |