US2459440A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of producing wax esters of hydrocarbon sulfonates
Assignee: Standard Oil Development Co
•
Filing: 1943-01-01
•
Granted: 1949-01-18
•
Expires: 1963-01-01
Abstract
No abstract record available.
Inventors
- 👤 Lieber Eugene
- 👤 Aloysius F Cashman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 06:46
CPC Classifications
C; C07; C07D; C07D213/00; C07D213/02; C07D213/89; C07C; C07C309/00; C07C309/63; C10; C10M; C10M1/00; C10M1/08; C10M2219/00; C10M2219/04; C10M2219/044; C10M2219/06; C10M2219/062; C10M2219/064; C10M2219/066; C10M2219/08; C10M2219/082; C10N; C10N2010/00; C10N2010/06; C10N2010/14; C10N2010/16
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-01-18 | 1952-07-19 | 1953-01-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-01-18 | 1956-07-19 | 1957-01-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-01-18 | 1960-07-19 | 1961-01-18 | $7700.00 | Window Closed / Lapsed |