US3368871A
Expired / Lapsed
US
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Fluidized bed process for the preparation of colloidal silicon carbide
Assignee: Veolia WTS Systems USA Inc
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Filing: 1966-12-05
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Granted: 1968-02-13
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Expires: 1986-12-05
Abstract
No abstract record available.
Inventors
- 👤 Thomas L O'connor
- 👤 Wayne A Mcrae
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 01:08
CPC Classifications
C; C22; C22B; C22B1/00; C22B1/02; C22B1/10; B; B01; B01J; B01J8/00; B01J8/18; B01J8/24; C01; C01B; C01B32/00; C01B32/90; C01B32/914; C01B32/956; C01B32/963; C01B32/97
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-02-12 | 1971-08-14 | 1972-02-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-02-12 | 1975-08-14 | 1976-02-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-02-12 | 1979-08-14 | 1980-02-13 | $7700.00 | Window Closed / Lapsed |