Patent US3924449A successfully refreshed from Google Patents.
US3205282A
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Isomerisation of olefinic compounds
Assignee: BP PLC
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Filing: 1961-11-22
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Granted: 1965-09-07
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Expires: 1981-11-22
Abstract
No abstract record available.
Inventors
- 👤 Sparke Maurice Barrington
- 👤 Wenham Alan John Maurice
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 18:37
CPC Classifications
B; B01; B01J; B01J31/00; B01J31/16; B01J31/22; B01J31/2282; B01J31/2295; B01J27/00; B01J27/06; B01J27/08; B01J27/10; B01J31/2291; C; C07; C07C; C07C5/00; C07C5/22; C07C5/2206; C07C5/2226; C07C5/2246; C07C5/2253; C07C5/23; C07C5/25; C07C5/2506; C07C5/2525; C07C5/2543; C07C5/255; C07C5/2562; C07C5/2581; C07C5/2587; C07C5/27; C07C5/2729; C07C5/2732; C07C5/274; C07C5/2748; C07C5/2751; C07C5/2756; C07C5/2762; B01J2231/00; B01J2231/50; B01J2231/52; B01J2531/00; B01J2531/80; B01J2531/82; B01J2531/824; B01J31/26; B01J31/28; B01J31/30; C07C2527/00; C07C2527/06; C07C2527/128; C07C2527/13; C07C2531/00; C07C2531/02; C07C2531/16; C07C2531/22; C07C2531/24
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
76 words
A PROCESS FOR ISOMERIZING A FEEDSTOCK CONSISTING ESSENTIALLY OF AT LEAST ONE METHYLPENTENE TO PRODUCE 2-METHYLPENTENE-2 COMPRISING; BOILING THE FEEDSTOCK IN THE PRESENCE OF A CATALYST WHICH CONSISTS OF A COMPLEX OF AN OLEFIN WITH A PALLADIUM HALIDE FOR A PERIOD OF TIME UP TO ABOUT 200 MINUTES AND UNDER CONDITIONS OF TEMPERATURE AND PRESSURE TO PRODUCE A MIXTURE CONSISTING PREDOMINANTLY OF 2-METHYLPENTENE-2, AND RECOVERING THE SAID 2METHYLPENTENT-2 FROM THE REACTION MIXTURE AS A DESIRED PRODUCT.
Claim 2
Dependent Claim
76 words
A PROCESS FOR ISOMERIZING A FEEDSTOCK CONSISTING ESSENTIALLY OF AT LEAST ONE METHYLPENTENE TO PRODUCE 2-METHYLPENTENE-2 COMPRISING; BOILING THE FEEDSTOCK IN THE PRESENCE OF A CATALYST WHICH CONSISTS OF A COMPLEX OF AN OLEFIN WITH A PALLADIUM HALIDE FOR A PERIOD OF TIME UP TO ABOUT 200 MINUTES AND UNDER CONDITIONS OF TEMPERATURE AND PRESSURE TO PRODUCE A MIXTURE CONSISTING PREDOMINANTLY OF 2-METHYLPENTENE-2, AND RECOVERING THE SAID 2METHYLPENTENT-2 FROM THE REACTION MIXTURE AS A DESIRED PRODUCT.
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) | 1968-09-06 | 1969-03-08 | 1969-09-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-06 | 1973-03-08 | 1973-09-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-06 | 1977-03-08 | 1977-09-07 | $7700.00 | Window Closed / Lapsed |