Patent US2963355A successfully refreshed from Google Patents.
US2963355A
Expired / Lapsed
US
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Preventing silica scale formation in slurry feeding processes
Assignee: Texaco Inc
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Filing: 1957-03-13
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Granted: 1960-12-06
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Expires: 1977-03-13
Abstract
No abstract record available.
Inventors
- 👤 Roger M Dille
- 👤 Ronald W Chapman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 15:19
CPC Classifications
C; C10; C10J; C10J1/00; C10J1/207; B; B02; B02C; B02C19/00; B02C19/0056; C22; C22B; C22B3/00; C22B3/20; C22B3/44; C22B3/46; Y; Y02; Y02P; Y02P10/00; Y02P10/20
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) | 1963-12-06 | 1964-06-06 | 1964-12-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-12-06 | 1968-06-06 | 1968-12-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-12-06 | 1972-06-06 | 1972-12-06 | $7700.00 | Window Closed / Lapsed |