US3739003A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Organic compounds of the transition metals
Assignee: IFP Energies nouvelles
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Filing: 1969-10-01
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Granted: 1973-06-12
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Expires: 1989-10-01
Abstract
Abstract AS CATALYSTS, PARTICULARLY FOR THE POLYMERIZATION OF ETHYLENICALLY UNSATURATED MONOMERS, THERE ARE PROVIDED COMPOUNDS OF THE FORMULA: ((H3-NXN)C-CO2-)MMT(Y)P)QLR IN WHICH X IS A HALOGEN ATOM, N IS 1, 2 OR 3, MT IS A TRANSITION METAL FROM GROUPS IV TO VIII (SUB-GROUPS A AND B) OF THE PERIODIC CHART OF THE ELEMENTS, Y IS A HYDRIDE ION OR AN ANION, EXCEPT OH, EACH OF M, P AND Q IS AN INTEGER FROM 1 TO 4, M+P BEING SUCH AS TO CONSTITUTE AN ELECTRICALLY NEUTRAL COMPOUND, L IS A LEWIS BASE AND R IS A NUMBER FROM 0 TO 2. PREFERRED EXAMPLES INCLUDE NICKEL MONOCHLORO-TRIFLUOROACETATE, NICKEL MONOBROMO-TRIFLUORACETATE, COBALT MONOCHLORO-TRIFLUOROACETATE, AND COMPLEXES THEREOF.
Inventors
- 👤 G Codet
- 👤 F Dawans
- 👤 F Charentenay
- 👤 P Teyssie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 13:33
CPC Classifications
C; C08; C08F; C08F4/00; C08F4/06; C07; C07C; C07C53/00; C07C53/15; C07C53/16; C08F36/00; C08F36/02; C08F36/04
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) | 1976-06-11 | 1976-12-11 | 1977-06-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-06-11 | 1980-12-11 | 1981-06-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-06-11 | 1984-12-11 | 1985-06-12 | $7700.00 | Window Closed / Lapsed |