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Patent US3313860A successfully refreshed from Google Patents.
US3313860A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Producing para- and meta-tertiary-butyltoluenes
Assignee: Mobil Oil AS
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Filing: 1964-03-06
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Granted: 1967-04-11
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Expires: 1984-03-06
Abstract
No abstract record available.
Inventors
- 👤 Jr James L Willis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 01:42
CPC Classifications
C; C07; C07C; C07C2/00; C07C2/54; C07C2/64; C07C2/66; C07C2521/00; C07C2521/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
70 words
THE PROCESS OF PRODUCING TERTIARY-BUTYL ALKYL BENZENES WHICH COMPRISES CONTACTING AN ISOBUTYLENE REACTANT AND AN ALKYLBENZENE HAVING BETWEEN ONE AND 4 CARBON ATOMS IN THE ALKYL RADICAL WITH A NATURAL CLAY SELECTED FROM THE GROUP OF CHEMICALLY BASIC AND NEUTRAL CLAYS WHICH HAVE NOT BEEN SUBJECTED TO CHEMICAL TREATMENT, AT TEMPERATURES OF BETWEEN ABOUT 300*F. AND ABOUT 600*F. AND AT PRESSURES OF BETWEEN ABOUT 200 P.S.I.G. AND ABOUT 400 P.S.I.G.
Claim 2
Dependent Claim
70 words
THE PROCESS OF PRODUCING TERTIARY-BUTYL ALKYL BENZENES WHICH COMPRISES CONTACTING AN ISOBUTYLENE REACTANT AND AN ALKYLBENZENE HAVING BETWEEN ONE AND 4 CARBON ATOMS IN THE ALKYL RADICAL WITH A NATURAL CLAY SELECTED FROM THE GROUP OF CHEMICALLY BASIC AND NEUTRAL CLAYS WHICH HAVE NOT BEEN SUBJECTED TO CHEMICAL TREATMENT, AT TEMPERATURES OF BETWEEN ABOUT 300*F. AND ABOUT 600*F. AND AT PRESSURES OF BETWEEN ABOUT 200 P.S.I.G. AND ABOUT 400 P.S.I.G.
References Cited (Backward Citations)
US2416022A
Cited
US2813907A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-04-10 | 1970-10-10 | 1971-04-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-04-10 | 1974-10-10 | 1975-04-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-04-10 | 1978-10-10 | 1979-04-11 | $7700.00 | Window Closed / Lapsed |