US3479262A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Olefin oxidation process
Assignee: Celanese Corp
•
Filing: 1966-01-03
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Granted: 1969-11-18
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Expires: 1986-01-03
Abstract
No abstract record available.
Inventors
- 👤 Alexander F Maclean
- 👤 Adin L Stautzenberger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 12:46
CPC Classifications
C; C07; C07C; C07C45/00; C07C45/27; C07C45/28; C07C45/78; C07C45/81; C07C45/82; C25; C25B; C25B3/00; C25B3/01; C25B3/07; C25B3/20; C25B3/23
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3080425A
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US3154586A
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US3122586A
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US3106579A
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US3087968A
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US3048636A
Cited
US3147203A
Cited
US3303020A
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 |