Patent US5507783A successfully refreshed from Google Patents.
Patent US3489775A successfully refreshed from Google Patents.
US3489775A
Expired / Lapsed
US
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Epoxidation of olefinic compounds
Assignee: IFP Energies nouvelles
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Filing: 1967-01-13
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Granted: 1970-01-13
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Expires: 1987-01-13
Abstract
No abstract record available.
Inventors
- 👤 Irenee Seree De Roch
- 👤 Pierre Menguy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 17:12
CPC Classifications
C; C07; C07D; C07D303/00; C07D303/02; C07D303/04; C07D301/00; C07D301/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3122569A
Cited
US3156709A
Cited
US3259638A
Cited
US3293269A
Cited
US3350422A
Cited
US3351635A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-01-12 | 1973-07-14 | 1974-01-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-01-12 | 1977-07-14 | 1978-01-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-01-12 | 1981-07-14 | 1982-01-13 | $7700.00 | Window Closed / Lapsed |