US3078319A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for making alkyl-1, 1-dimethylindans
Assignee: Givaudan Roure Corp
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Filing: 1960-03-02
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Granted: 1963-02-19
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Expires: 1980-03-02
Abstract
No abstract record available.
Inventors
- 👤 Thomas F Wood
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 16:20
CPC Classifications
C; C11; C11B; C11B9/00; C11B9/0042; C11B9/0046; C11B9/0049; C07; C07C; C07C2/00; C07C2/54; C07C2/64; C07C2/66; C07C2/68; C07C2/70; C07C45/00; C07C45/45; C07C45/46; C07C49/00; C07C49/76; C07C49/782; C07C49/792; C07C2527/00; C07C2527/02; C07C2527/053; C07C2527/054; C07C2527/06; C07C2527/08; C07C2527/12; C07C2527/1206; C07C2527/1213; C07C2527/14; C07C2527/16; C07C2527/167; C07C2527/173; C07C2602/00; C07C2602/02; C07C2602/04; C07C2602/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
56 words
THE PROCESS FOR PREPARING ALKYL-1, 1-DIMENTHYLINDAHS, UNSUBSTITUTED IN THE 3-POSITION, WHICH COMPRISES REACTING A LOWER ALKYL-SUBSTITUTED BENZENE WITH A MEMBER SELECTED FROM THE GROUP CONSISTING OF ISOPRENE AND 2,3-DIMENTHYL1,3-BUTADIENE IN THE PRESENCE OF AN ACID CATALYST USEFUL IN BRINGING ABOUT FRIEDEL-CRAFTS REACTIONS, AT A TEMPERATURE WITHIN THE RANGE FROM ABOUT -30* C. TO ABOUT 150* C.
Claim 2
Dependent Claim
56 words
THE PROCESS FOR PREPARING ALKYL-1, 1-DIMENTHYLINDAHS, UNSUBSTITUTED IN THE 3-POSITION, WHICH COMPRISES REACTING A LOWER ALKYL-SUBSTITUTED BENZENE WITH A MEMBER SELECTED FROM THE GROUP CONSISTING OF ISOPRENE AND 2,3-DIMENTHYL1,3-BUTADIENE IN THE PRESENCE OF AN ACID CATALYST USEFUL IN BRINGING ABOUT FRIEDEL-CRAFTS REACTIONS, AT A TEMPERATURE WITHIN THE RANGE FROM ABOUT -30* C. TO ABOUT 150* C.
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) | 1966-02-18 | 1966-08-20 | 1967-02-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-02-18 | 1970-08-20 | 1971-02-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-02-18 | 1974-08-20 | 1975-02-19 | $7700.00 | Window Closed / Lapsed |