US3431316A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Conversion of olefins
Assignee: Phillips Petroleum Co
•
Filing: 1965-01-04
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Granted: 1969-03-04
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Expires: 1985-01-04
Abstract
No abstract record available.
Inventors
- 👤 Robert L Banks
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 04:48
CPC Classifications
C; C07; C07C; C07C11/00; C07C11/02; C07C11/08; C07C11/06; C07C2/00; C07C6/00; C07C6/02; C07C6/04; C07C2521/00; C07C2521/06; C07C2521/08; C07C2523/00; C07C2523/16; C07C2523/24; C07C2523/28; C07C2523/30
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-03-03 | 1972-09-02 | 1973-03-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-03-03 | 1976-09-02 | 1977-03-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-03-03 | 1980-09-02 | 1981-03-04 | $7700.00 | Window Closed / Lapsed |