US3565802A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oil dispersible inorganic borate in combination with ep agents as lubricating oil additives
Assignee: Chevron USA Inc
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Filing: 1968-04-30
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Granted: 1971-02-23
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Expires: 1988-04-30
Abstract
Abstract OIL DISPERSIBLE HYDRATED ALKALI METAL BORATE ANTIWEAR ADDITIVES ARE COMBINED WITH SULFUR OR HALOGEN CONTAINING EXTREME PRESSURE ADDITIVES TO PROVIDE COMPOSITIONS HAVING EXCELLENT WEAR AND EXTREME PRESSURE PROPERTIES WHILE NOT CONTRIBUTING TO INORGANIC SALT DEPOSITION RESULTING FROM CONTACT WITH MOISTURE.
Inventors
- 👤 William W West
- 👤 John M Stokely
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:36
CPC Classifications
C; C10; C10M; C10M1/00; C10M1/08; C10M2201/00; C10M2201/087; C10M2203/00; C10M2203/06; C10M2205/00; C10M2205/02; C10M2207/00; C10M2207/02; C10M2207/023; C10M2207/027; C10M2207/04; C10M2209/00; C10M2209/10; C10M2209/103; C10M2211/00; C10M2211/06; C10M2211/08; C10M2213/00; C10M2213/02; C10M2213/06; C10M2213/062; C10M2215/00; C10M2215/02; C10M2215/04; C10M2215/042; C10M2215/08; C10M2215/082; C10M2215/086; C10M2215/24; C10M2215/28; C10M2217/00; C10M2217/02; C10M2217/024; C10M2217/06; C10M2219/00; C10M2219/04; C10M2219/044; C10M2219/08; C10M2219/082; C10M2219/083; C10M2219/086; C10M2219/10; C10M2219/102; C10M2219/104; C10M2219/106; C10M2221/00; C10M2221/04; C10M2221/041; C10M2229/00; C10M2229/02; C10M2229/04; C10M2229/05
Claims Analysis
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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) | 1974-02-22 | 1974-08-24 | 1975-02-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-22 | 1978-08-24 | 1979-02-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-22 | 1982-08-24 | 1983-02-23 | $7700.00 | Window Closed / Lapsed |