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US3461064A
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Process for removing vanadium from catalysts
Assignee: Gulf Research and Development Co
•
Filing: 1967-04-28
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Granted: 1969-08-12
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Expires: 1987-04-28
Abstract
No abstract record available.
Inventors
- 👤 Harry A Hamilton
- 👤 Howard G Mcilvried
- 👤 Raynor T Sebulsky
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 04:10
CPC Classifications
C; C22; C22B; C22B34/00; C22B34/20; C22B34/22; C22B34/225; B; B01; B01J; B01J23/00; B01J23/90; B01J23/96; Y; Y02; Y02P; Y02P10/00; Y02P10/20; Y10; Y10S; Y10S502/00; Y10S502/515; Y10S502/516
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1403198A
Cited
US3151088A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-08-11 | 1973-02-10 | 1973-08-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-08-11 | 1977-02-10 | 1977-08-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-08-11 | 1981-02-10 | 1981-08-12 | $7700.00 | Window Closed / Lapsed |