US2483499A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lube oil additives and preparation thereof
Assignee: Standard Oil Development Co
•
Filing: 1944-12-08
•
Granted: 1949-10-04
•
Expires: 1964-12-08
Abstract
No abstract record available.
Inventors
- 👤 Lieber Eugene
- 👤 Aloyslus F Cashman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 05:11
CPC Classifications
C; C07; C07C; C07C317/00; C08; C08G; C08G75/00; C08G75/20; C10; C10M; C10M2219/00; C10M2219/04; C10M2221/00; C10M2221/02
Claims Analysis
Total Claims: 0
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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) | 1952-10-03 | 1953-04-04 | 1953-10-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-10-03 | 1957-04-04 | 1957-10-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-10-03 | 1961-04-04 | 1961-10-04 | $7700.00 | Window Closed / Lapsed |