US3017441A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for nuctear alkylation of aromatic hydrocarbons
Assignee: Sinclair Refining Co
•
Filing: 1957-12-10
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Granted: 1962-01-16
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Expires: 1977-12-10
Abstract
No abstract record available.
Inventors
- 👤 Owen H Thomas
- 👤 Jr William P Hettinger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 15:52
CPC Classifications
C; C07; C07C; C07C2/00; C07C2/54; C07C2/64; C07C2/66; B; B01; B01J; B01J39/00; B01J39/08; B01J39/16; B01J39/18; B01J39/20; C07C2531/00; C07C2531/02; C07C2531/06; C07C2531/08; C07C2531/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
12 words
A PROCESS FOR ALKYLATING AN AROMATIC HYDROCARBON OF THE FOLLOWING GENERAL FORMULA
Claim 2
Dependent Claim
12 words
A PROCESS FOR ALKYLATING AN AROMATIC HYDROCARBON OF THE FOLLOWING GENERAL FORMULA
References Cited (Backward Citations)
US2802884A
Cited
GB733753A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-01-15 | 1965-07-17 | 1966-01-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-01-15 | 1969-07-17 | 1970-01-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-01-15 | 1973-07-17 | 1974-01-16 | $7700.00 | Window Closed / Lapsed |