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Patent US3009972A successfully refreshed from Google Patents.
US3009972A
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Dimerization of olefins
Assignee: Monsanto Chemicals Ltd
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Filing: 1959-09-25
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Granted: 1961-11-21
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Expires: 1979-09-25
Abstract
No abstract record available.
Inventors
- 👤 William K Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 05:06
CPC Classifications
C; C07; C07C; C07C2/00; C07C2/02; C07C2/04; C07C2/06; C07C2/08; C07C2/26; C07C2/30; C07C2531/00; C07C2531/02; C07C2531/12; C07C2531/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
52 words
IN THE PROCESS FOR THE DIMERIZATION OF OLEFINIC HYDROCARBONS HAVING AT LEAST 3 CARBON ATOMS IN THE MOLECULE, THE IMPROVEMENT WHICH COMPRISES CONTACTING SAID OLEFINIC HYDROCARBON WITH A CATALYST COMPRISING A BORANE AND AN ORGANO COMPOUND OF A METAL SELECTED FROM THE GROUP CONSISTING OF ALUMINUM, GALLIUM, INDIUM, BERYLLIUM, MAGNESIUM AND ZINC.
Claim 2
Dependent Claim
52 words
IN THE PROCESS FOR THE DIMERIZATION OF OLEFINIC HYDROCARBONS HAVING AT LEAST 3 CARBON ATOMS IN THE MOLECULE, THE IMPROVEMENT WHICH COMPRISES CONTACTING SAID OLEFINIC HYDROCARBON WITH A CATALYST COMPRISING A BORANE AND AN ORGANO COMPOUND OF A METAL SELECTED FROM THE GROUP CONSISTING OF ALUMINUM, GALLIUM, INDIUM, BERYLLIUM, MAGNESIUM AND ZINC.
References Cited (Backward Citations)
FR1116132A
Cited
US2840551A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-11-20 | 1965-05-22 | 1965-11-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-11-20 | 1969-05-22 | 1969-11-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-11-20 | 1973-05-22 | 1973-11-21 | $7700.00 | Window Closed / Lapsed |