US3082267A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Indane synthesis
Assignee: ExxonMobil Technology and Engineering Co
•
Filing: 1960-03-01
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Granted: 1963-03-19
•
Expires: 1980-03-01
Abstract
No abstract record available.
Inventors
- 👤 Hunter Edward Allen
- 👤 Aldridge Clyde Lee
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 13:16
CPC Classifications
C; C07; C07C; C07C2/00; C07C2/54; C07C2/72; C07C2/76; C07C2531/00; C07C2531/02; C07C2602/00; C07C2602/02; C07C2602/04; C07C2602/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
77 words
AN IMPROVED PROCESS FOR PREPARING INDANES WHICH COMPRISES REACTING AN ALKYL BENZENE HAVING AN ALKYL GROUP CONTAINING NOT MORE THAN 10 CARBON ATOMS, SAID ALKYL GROUP HAVING AT LEAST ONE HYDROGEN ATOM ATTACHED TO A SATURATED CARBON ATOM ALPHA TO THE BENZENE RING, WITH 2-20 MOL PERCENT OF ETHYLENE AT TEMPERATURES OF 200 TO 350*C., PRESSURES OF 400 TO 800 P.S.I.G., AND IN THE PRESENCE OF A FREE RADICAL INITIATOR, AND RECOVERING INDANES FROM THE REACTION MIXTURE.
Claim 2
Dependent Claim
77 words
AN IMPROVED PROCESS FOR PREPARING INDANES WHICH COMPRISES REACTING AN ALKYL BENZENE HAVING AN ALKYL GROUP CONTAINING NOT MORE THAN 10 CARBON ATOMS, SAID ALKYL GROUP HAVING AT LEAST ONE HYDROGEN ATOM ATTACHED TO A SATURATED CARBON ATOM ALPHA TO THE BENZENE RING, WITH 2-20 MOL PERCENT OF ETHYLENE AT TEMPERATURES OF 200 TO 350*C., PRESSURES OF 400 TO 800 P.S.I.G., AND IN THE PRESENCE OF A FREE RADICAL INITIATOR, AND RECOVERING INDANES FROM THE REACTION MIXTURE.
References Cited (Backward Citations)
US2660610A
Cited
US2748178A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-03-18 | 1966-09-17 | 1967-03-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-03-18 | 1970-09-17 | 1971-03-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-03-18 | 1974-09-17 | 1975-03-19 | $7700.00 | Window Closed / Lapsed |