US3776835A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fouling rate reduction in hydrocarbon streams
Assignee: Union Oil Company of California
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Filing: 1972-02-23
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Granted: 1973-12-04
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Expires: 1992-02-23
Abstract
Abstract FOULING ACCOMPANYING THE TREATMENT OF HYDROCARBON STREAMS AT ELEVATED TEMPERATURES IS REDUCED BY CONTACTING THE HYDROCARBONS IN THE PRESENCE OF HYROGEN AND ANTIFOULING COMPOSITIONS CONTAINING ONE OR MORE OF DETERGENTS, DISPERSANTS, METAL DEACTIVATORS, CORROSION INHIBITORS AND ANTIOXIDANTS.
Inventors
- 👤 L Dvoracek
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 23:04
CPC Classifications
C; C10; C10G; C10G75/00; C10G75/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-12-03 | 1977-06-04 | 1977-12-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-12-03 | 1981-06-04 | 1981-12-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-12-03 | 1985-06-04 | 1985-12-04 | $7700.00 | Window Closed / Lapsed |