US2455337A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Addition agent for lubricants
Assignee: ConocoPhillips Co
•
Filing: 1945-08-07
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Granted: 1948-11-30
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Expires: 1965-08-07
Abstract
No abstract record available.
Inventors
- 👤 William A Jones
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 18:42
CPC Classifications
C; C10; C10M; C10M1/00; C10M1/08; C10M2207/00; C10M2207/28; C10M2211/00; C10M2211/04; C10M2211/042; C10M2211/044; C10M2211/06; C10M2211/08; C10M2215/00; C10M2215/02; C10M2215/04; C10M2215/06; C10M2215/08; C10M2215/082; C10M2215/24; C10M2215/26; C10M2215/28; C10M2219/00; C10M2219/02; C10M2219/024; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/041; C10M2223/042; C10M2223/06; C10M2223/061; C10M2223/08; C10M2223/12; C10N; C10N2010/00; C10N2010/06; C10N2040/00; C10N2040/20; C10N2040/22
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) | 1951-11-30 | 1952-05-31 | 1952-11-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-11-30 | 1956-05-31 | 1956-11-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-11-30 | 1960-05-31 | 1960-11-30 | $7700.00 | Window Closed / Lapsed |