Patent US3004087A successfully refreshed from Google Patents.
US3004087A
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Dimerisation of olefines
Assignee: Imperial Chemical Industries Ltd
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Filing: 1957-12-23
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Granted: 1961-10-10
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Expires: 1977-12-23
Abstract
No abstract record available.
Inventors
- 👤 Goddard Reginald Edwin
- 👤 Smith Peter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 14:58
CPC Classifications
C; C07; C07C; C07C2/00; C07C2/02; C07C2/04; C07C2/06; C07C2/08; C07C2/26; C07C2/30; C07C2521/00; C07C2521/06; C07C2523/00; C07C2523/70; C07C2523/72; C07C2531/00; C07C2531/02; C07C2531/12; C07C2531/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
63 words
A PROCESS FOR THE DIMERIZATION OF AN OLEFINE HAVING FROM 4 TO 7 CARBON ATOMS AND HAVING THE DOUBLE BOND IN OTHER THAN A TERMINAL POSITION WHICH COMPRISES CONTACTING SAID OLEFINE AT A TEMPERATURE ABOVE 100*C. AND UNDER ELEVATED PRESSURES WITH A REACTION MEDIUM CONSISTING ESSENTIALLY OF ALUMINUM TRIALKYL AND A FINELY DIVIDED METAL SELECTED FROM THE GROUP CONSISTING OF COPPER AND TITANIUM.
Claim 2
Dependent Claim
63 words
A PROCESS FOR THE DIMERIZATION OF AN OLEFINE HAVING FROM 4 TO 7 CARBON ATOMS AND HAVING THE DOUBLE BOND IN OTHER THAN A TERMINAL POSITION WHICH COMPRISES CONTACTING SAID OLEFINE AT A TEMPERATURE ABOVE 100*C. AND UNDER ELEVATED PRESSURES WITH A REACTION MEDIUM CONSISTING ESSENTIALLY OF ALUMINUM TRIALKYL AND A FINELY DIVIDED METAL SELECTED FROM THE GROUP CONSISTING OF COPPER AND TITANIUM.
References Cited (Backward Citations)
US2374687A
Cited
US2695327A
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US2781410A
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FR1116132A
Cited
US2831029A
Cited
BE538782A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-10-09 | 1965-04-10 | 1965-10-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-10-09 | 1969-04-10 | 1969-10-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-10-09 | 1973-04-10 | 1973-10-10 | $7700.00 | Window Closed / Lapsed |