US2883336A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for hydrodesulfurization of coker products
Assignee: ExxonMobil Technology and Engineering Co
•
Filing: 1954-03-29
•
Granted: 1959-04-21
•
Expires: 1974-03-29
Abstract
No abstract record available.
Inventors
- 👤 Sumner B Sweetser
- 👤 Weikart John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 16:37
CPC Classifications
C; C10; C10G; C10G45/00; C10G45/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1962182A
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US2070295A
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US2209458A
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US2293759A
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US2647076A
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US2587987A
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US2656302A
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US2691623A
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US2769760A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-04-20 | 1962-10-20 | 1963-04-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-04-20 | 1966-10-20 | 1967-04-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-04-20 | 1970-10-20 | 1971-04-21 | $7700.00 | Window Closed / Lapsed |