US3213155A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Monoolefin isomerization process
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1961-05-19
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Granted: 1965-10-19
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Expires: 1981-05-19
Abstract
No abstract record available.
Inventors
- 👤 Schriesheim Alan
- 👤 Jr Charles A Rowe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 05:06
CPC Classifications
C; C07; C07C; C07C319/00; C07C319/22; C07C319/24; C07C45/00; C07C45/49; C07C5/00; C07C5/22; C07C5/2206; C07C5/2266; C07C5/23; C07C5/25; C07C5/2506; C07C5/2562; C07C2531/00; C07C2531/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
89 words
THE METHOD OF EFFECTING THE ISOMERIZATION OF MONOOLEFINIC HYDROCARBON COMPOUNDS IN A CARBANION REACTION PROCESS WHICH COMPRISES CONTACTING SAID UNSATURATED HYDROCARBON COMPOUND WITH A BASE-SOLVENT SYSTEM CONSISTING ESSENTIALLY OF A BASIC CATALYST SELECTED FROM THE GROUP CONSISTING OF ALKALI METAL ALKOXIDES AND ALKALI METAL AMIDES AND AN APROTIC, DIPOLAR ORGANIC SOLVENT WHICH IS SELECTED FROM THE GROUP CONSISTING OF DIMETHYLSULFOXIDE, N,N-DIMETHYL FORMAMIDE, AND DIMETHYL ACETAMIDE IN AN AMOUNT AND FOR A PERIOD SUFFICIENT TO EFFECT A SHIFT IN THE POSITION OF THE DOUBLE BOND IN THE SAID UNSATURATED HYDROCARBONS.
Claim 2
Independent Claim
89 words
THE METHOD OF EFFECTING THE ISOMERIZATION OF MONOOLEFINIC HYDROCARBON COMPOUNDS IN A CARBANION REACTION PROCESS WHICH COMPRISES CONTACTING SAID UNSATURATED HYDROCARBON COMPOUND WITH A BASE-SOLVENT SYSTEM CONSISTING ESSENTIALLY OF A BASIC CATALYST SELECTED FROM THE GROUP CONSISTING OF ALKALI METAL ALKOXIDES AND ALKALI METAL AMIDES AND AN APROTIC, DIPOLAR ORGANIC SOLVENT WHICH IS SELECTED FROM THE GROUP CONSISTING OF DIMETHYLSULFOXIDE, N,N-DIMETHYL FORMAMIDE, AND DIMETHYL ACETAMIDE IN AN AMOUNT AND FOR A PERIOD SUFFICIENT TO EFFECT A SHIFT IN THE POSITION OF THE DOUBLE BOND IN THE SAID UNSATURATED HYDROCARBONS.
References Cited (Backward Citations)
US3053916A
Cited
US3097195A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-10-18 | 1969-04-19 | 1969-10-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-18 | 1973-04-19 | 1973-10-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-18 | 1977-04-19 | 1977-10-19 | $7700.00 | Window Closed / Lapsed |