US3431292A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Olefinic nitriles by ammoxidation of olefins with promoted antimony oxideuranium oxide catalyst
Assignee: Standard Oil Co
•
Filing: 1966-12-23
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Granted: 1969-03-04
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Expires: 1986-12-23
Abstract
No abstract record available.
Inventors
- 👤 James L Callahan
- 👤 Robert K Grasselli
- 👤 Warren R Knipple
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 18:09
CPC Classifications
C; C07; C07C; C07C253/00; C07C253/24; C07C253/26; B; B01; B01J; B01J23/00; B01J23/16; B01J23/38; B01J23/54; B01J23/56; B01J23/64; B01J23/644; B01J23/6445; B01J23/66; B01J23/68; B01J23/681; B01J23/70; B01J23/76; B01J23/84; B01J23/843; B01J23/8435; Y; Y02; Y02P; Y02P20/00; Y02P20/50; Y02P20/52
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3226421A
Cited
US3198750A
Cited
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 |