US3439054A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Metal carbonyl catalyst and hydrogenation process therefor
Assignee: ExxonMobil Technology and Engineering Co
•
Filing: 1966-12-08
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Granted: 1969-04-15
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Expires: 1986-12-08
Abstract
No abstract record available.
Inventors
- 👤 Wolfram R Kroll
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 10:49
CPC Classifications
B; B01; B01J; B01J31/00; B01J31/02; B01J31/12; B01J31/14; B01J31/143; B01J31/16; B01J31/20; C; C07; C07C; C07C5/00; C07C5/02; C07C5/03; C07C5/22; C07C5/23; C07C5/25; C07C5/2506; C07C5/2562; C07C5/2575; B01J2231/00; B01J2231/60; B01J2231/64; B01J2231/641; B01J2231/643; B01J2231/645; B01J2531/00; B01J2531/80; B01J2531/84; B01J2531/842; B01J2531/845; C07C2531/00; C07C2531/02; C07C2531/12; C07C2531/14; C07C2531/16; C07C2531/20; C07C2601/00; C07C2601/18; C07C2601/20
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) | 1972-04-14 | 1972-10-14 | 1973-04-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-04-14 | 1976-10-14 | 1977-04-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-04-14 | 1980-10-14 | 1981-04-15 | $7700.00 | Window Closed / Lapsed |