US2453850A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lubricating compositions
Assignee: Standard Oil Development Co
•
Filing: 1941-12-03
•
Granted: 1948-11-16
•
Expires: 1961-12-03
Abstract
No abstract record available.
Inventors
- 👤 Louis A Mikeska
- 👤 Allen R Kittleson
- 👤 Warren M Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 23:54
CPC Classifications
C; C10; C10M; C10M1/00; C10M1/08; C10M2205/00; C10M2205/02; C10M2205/026; C10M2207/00; C10M2207/10; C10M2207/12; C10M2207/125; C10M2207/129; C10M2207/16; C10M2207/40; C10M2207/404; C10M2211/00; C10M2215/00; C10M2215/02; C10M2215/06; C10M2215/062; C10M2219/00; C10N; C10N2010/00
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) | 1951-11-16 | 1952-05-17 | 1952-11-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-11-16 | 1956-05-17 | 1956-11-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-11-16 | 1960-05-17 | 1960-11-16 | $7700.00 | Window Closed / Lapsed |