US3511771A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Integrated hydrofining,hydrodesulfurization and steam cracking process
Assignee: ExxonMobil Technology and Engineering Co
•
Filing: 1967-07-24
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Granted: 1970-05-12
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Expires: 1987-07-24
Abstract
No abstract record available.
Inventors
- 👤 Glen P Hamner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 11:19
CPC Classifications
C; C10; C10G; C10G45/00; C10G45/32; C10G45/34; C10G45/36; C10G45/38; C10G65/00; C10G65/02; C10G65/04; C10G65/06; C10G69/00; C10G69/02; C10G69/06; C10G69/14
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3024188A
Cited
US3113097A
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US3190830A
Cited
US3239449A
Cited
US3340178A
Cited
US3281351A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-05-11 | 1973-11-10 | 1974-05-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-05-11 | 1977-11-10 | 1978-05-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-05-11 | 1981-11-10 | 1982-05-12 | $7700.00 | Window Closed / Lapsed |