Patent US2488134A successfully refreshed from Google Patents.
US2488134A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sulfur-containing aromatic compounds
Assignee: Standard Oil Development Co
•
Filing: 1943-05-26
•
Granted: 1949-11-15
•
Expires: 1963-05-26
Abstract
No abstract record available.
Inventors
- 👤 Louis A Mikeska
- 👤 Allen R Kittleson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 09:28
CPC Classifications
C; C10; C10M; C10M1/00; C10M1/08; C07; C07C; C07C323/00; C10M2219/00; C10M2219/06; C10M2219/062; C10M2219/066; C10M2219/08; C10M2219/082; C10M2219/084; C10M2219/087; C10M2219/088; C10M2219/089; C10M2221/00; C10M2221/02; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/042; C10M2223/047; C10N; C10N2010/00; C10N2010/04; C10N2010/06; C10N2010/08; C10N2010/14; C10N2010/16
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-11-14 | 1953-05-16 | 1953-11-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-11-14 | 1957-05-16 | 1957-11-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-11-14 | 1961-05-16 | 1961-11-15 | $7700.00 | Window Closed / Lapsed |