Patent US3323861A successfully refreshed from Google Patents.
US3323861A
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Process of calcining sodium hydrogen fluoride in serially arranged fluidizable beds to form sodium fluoride and hydrogen fluoride
Assignee: Taiheiyo Cement Corp
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Filing: 1963-07-01
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Granted: 1967-06-06
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Expires: 1983-07-01
Abstract
No abstract record available.
Inventors
- 👤 Toyabe Ryo
- 👤 Yamaguchi Taro
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 09:33
CPC Classifications
C; C22; C22B; C22B1/00; C22B1/02; C22B1/10; B; B01; B01J; B01J10/00; B01J10/005; B01J8/00; B01J8/18; B01J8/24; B01J8/26; C01; C01B; C01B32/00; C01B32/50; C01B7/00; C01B7/19; C01B7/191; C01B9/00; C01B9/08; C01D; C01D3/00; C01D3/02; C01D7/00; C01D7/12; C01D7/123; C01F; C01F11/00; C01F11/02; C01F11/04; C01F11/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
CA593047A
Cited
US2465410A
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US2596954A
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US2485604A
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US2666526A
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US2683685A
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US2867506A
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US2867429A
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US3249395A
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US3159455A
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US3140152A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-06-05 | 1970-12-05 | 1971-06-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-06-05 | 1974-12-05 | 1975-06-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-06-05 | 1978-12-05 | 1979-06-06 | $7700.00 | Window Closed / Lapsed |