US3479362A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sulfoalkylation of enamines
Assignee: Phillips Petroleum Co
•
Filing: 1968-06-07
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Granted: 1969-11-18
•
Expires: 1988-06-07
Abstract
No abstract record available.
Inventors
- 👤 John R Norell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 14:42
CPC Classifications
C; C07; C07D; C07D295/00; C07D295/04; C07D295/08; C07D295/096; C10; C10M; C10M1/00; C10M1/08; C10M2219/00; C10M2219/04; C10M2219/044
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3350390A
Cited
US3367864A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-11-17 | 1973-05-19 | 1973-11-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-11-17 | 1977-05-19 | 1977-11-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-11-17 | 1981-05-19 | 1981-11-18 | $7700.00 | Window Closed / Lapsed |