Patent US2373031A successfully refreshed from Google Patents.
US2373031A
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Process for alkylating aromatic constituents
Assignee: Standard Oil Development Co
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Filing: 1941-07-12
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Granted: 1945-04-03
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Expires: 1961-07-12
Abstract
No abstract record available.
Inventors
- 👤 Jr Charles N Kimberlin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 22:19
CPC Classifications
C; C07; C07C; C07C2/00; C07C2/54; C07C2/64; C07C2/66; C07C2/68; C07C2527/00; C07C2527/06; C07C2527/125; C07C2527/126; Y; Y10; Y10S; Y10S585/00; Y10S585/8995; Y10S585/901; Y10S585/902; Y10S585/903; Y10S585/905
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) | 1948-04-02 | 1948-10-02 | 1949-04-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1952-04-02 | 1952-10-02 | 1953-04-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1956-04-02 | 1956-10-02 | 1957-04-03 | $7700.00 | Window Closed / Lapsed |