US3238266A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for alkylating aromatic hydro-carbons using a sulfonated resin catalyst
Assignee: Richfield Oil Corp
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Filing: 1962-07-16
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Granted: 1966-03-01
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Expires: 1982-07-16
Abstract
No abstract record available.
Inventors
- 👤 Skripek Milan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 13:18
CPC Classifications
C; C07; C07C; C07C2/00; C07C2/54; C07C2/64; C07C2/66; C07C2531/00; C07C2531/02; C07C2531/06; C07C2531/08; C07C2531/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
44 words
A PROCESS FOR PREPARING DETERGENT ALKYLATE COMPRISING REACTING A MONONUCLEAR AROMATIC COMPOUND SELECTED FROM THE GROUP CONSISTING OF BENZENE AND TOLUENE WITH AN OLEFINFEED CONTAINING PREDOMINANTLY OLEFINS SELECTED FROM THE GROUP CONSISTING OF ETHYLENE AND PROPLENE POLYMERS IN THE C6-C16 RANGE HAVING THE FORMULA
Claim 2
Dependent Claim
44 words
A PROCESS FOR PREPARING DETERGENT ALKYLATE COMPRISING REACTING A MONONUCLEAR AROMATIC COMPOUND SELECTED FROM THE GROUP CONSISTING OF BENZENE AND TOLUENE WITH AN OLEFINFEED CONTAINING PREDOMINANTLY OLEFINS SELECTED FROM THE GROUP CONSISTING OF ETHYLENE AND PROPLENE POLYMERS IN THE C6-C16 RANGE HAVING THE FORMULA
References Cited (Backward Citations)
US3017441A
Cited
US3037052A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-02-28 | 1969-08-30 | 1970-03-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-28 | 1973-08-30 | 1974-03-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-28 | 1977-08-30 | 1978-03-01 | $7700.00 | Window Closed / Lapsed |