Patent US2396683A successfully refreshed from Google Patents.
US2396683A
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Production of alkylbenzene
Assignee: Standard Oil Co
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Filing: 1943-02-26
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Granted: 1946-03-19
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Expires: 1963-02-26
Abstract
No abstract record available.
Inventors
- 👤 Don R Carmody
- 👤 Harold E Huber
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 12:54
CPC Classifications
C; C07; C07C; C07C15/00; C07C15/02; C07C15/085; C07C2/00; C07C2/54; C07C2/64; C07C2/66; C07C2/70; C07C6/00; C07C6/08; C07C6/12; C07C6/126; C07C2527/00; C07C2527/14; C07C2527/16; C07C2527/167; C07C2527/173; Y; Y10; Y10S; Y10S585/00; Y10S585/8995; Y10S585/903
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1949-03-18 | 1949-09-17 | 1950-03-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1953-03-18 | 1953-09-17 | 1954-03-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1957-03-18 | 1957-09-17 | 1958-03-19 | $7700.00 | Window Closed / Lapsed |