Patent US4257623A successfully refreshed from Google Patents.
Patent US3578596A successfully refreshed from Google Patents.
US3578596A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Penetrating oil formulation
Assignee: Marathon Oil Co
•
Filing: 1968-06-25
•
Granted: 1971-05-11
•
Expires: 1988-06-25
Abstract
Abstract LUBRICATING OIL COMPOSITION HAVING PENETRATING, RESIDUAL LUBRICATING PROPERTIES, AND RELEASE CHARACTERISTICS IS OBTAINED BY MIXING 40-95% OF HYDROCARBON CARRIER (E.G MIXTURE OF NAPHTHA AND KEROSENE), 5-40% OF AN ALKYL ESTER OF A CARBOXYLIC ACID CONTAINING ABOUT 8-24 CARBON ATOMS, AND ABOUT 0.1% OF DIALKYL POLYSILOXANE.
Inventors
- 👤 David D Conway
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 10:14
CPC Classifications
C; C10; C10M; C10M169/00; C10M169/04; C10M169/044; C10M2203/00; C10M2203/10; C10M2203/102; C10M2203/104; C10M2203/106; C10M2203/108; C10M2207/00; C10M2207/28; C10M2207/281; C10M2207/282; C10M2207/283; C10M2207/286; C10M2229/00; C10M2229/04; C10M2229/041; C10N; C10N2040/00; C10N2040/30; C10N2040/32; C10N2040/34; C10N2040/36; C10N2040/38; C10N2040/40; C10N2040/42; C10N2040/44; C10N2040/50
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-05-10 | 1974-11-09 | 1975-05-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-05-10 | 1978-11-09 | 1979-05-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-05-10 | 1982-11-09 | 1983-05-11 | $7700.00 | Window Closed / Lapsed |