US3780078A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of producing pi-allylic nickel complexes
Assignee: Individual
•
Filing: 1971-07-28
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Granted: 1973-12-18
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Expires: 1991-07-28
Abstract
Abstract A METHOD OF PRODUCING $-ALLYLIC NICKEL COMPLEXES BY REACTING NICKEL TETRACARBONYL WITH DIENE HYDROCARBONS IN THE PRESENCE OF PROTON ACIDS. THE REACTION IS EFFECTED ON HEATING IN A SOLVENT WHICH IS INERT IN RESPECT TO SAID REAGENTS WITH SIMULTANEOUS REMOVAL OF THE EVOLVING CARBON MONOXIDES.
Inventors
- 👤 K Anikeev
- 👤 T Kozhenets
- 👤 V Kormer
- 👤 B Babitsky
- 👤 A Verblovsky
- 👤 E Rivin
- 👤 M Lobach
- 👤 V Markova
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 06:57
CPC Classifications
B; B01; B01J; B01J31/00; B01J31/16; B01J31/22; B01J31/2282; B01J31/2291; B01J31/2295; C; C07; C07F; C07F15/00; C07F15/04; C08; C08F; C08F36/00; C08F36/02; C08F36/04; B01J2231/00; B01J2231/10; B01J2231/12; B01J2531/00; B01J2531/80; B01J2531/84; B01J2531/847; B01J31/02; B01J31/04; B01J31/20
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-12-17 | 1977-06-18 | 1977-12-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-12-17 | 1981-06-18 | 1981-12-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-12-17 | 1985-06-18 | 1985-12-18 | $7700.00 | Window Closed / Lapsed |