US2727005A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Marine engine oil containing a petroleum oxidate
Assignee: Texaco Inc
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Filing: 1952-03-04
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Granted: 1955-12-13
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Expires: 1972-03-04
Abstract
No abstract record available.
Inventors
- 👤 John K Mckinley
- 👤 Melvin R Hefty
- 👤 Alton J Deutser
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 06:08
CPC Classifications
C; C10; C10M; C10M1/00; C10M1/08; C10M2201/00; C10M2201/02; C10M2205/00; C10M2205/16; C10N; C10N2040/00; C10N2040/135; C10N2060/00; C10N2060/04; C10N2070/00; C10N2070/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
94 words
A LUBRICATING COMPOSITION ADAPTED TO FORM EMULSIONS OF THE WATER IN OIL TYPE IN THE PRESENCE OF WATER, CONSISTING ESSENTIALLY OF A MINERAL LUBRICATING OIL OF PREDOMINANTLY NAPHTHENIC CHARACTER HAVING A SAYBOLT UNIVERSAL VISCOSITY AT 100* F. IN THE RANGE FROM ABOUT 400 TO 1500 SECONDS, AND ABOUT 1-10 PER CENT BY WEIGHT OF A PETROLEUM OXIDATE CHARACTERIZED BY A MAXIMUM NEUTRALIZATION NUMBER OF ABOUT 35, A SAPONIFICATION NUMBER OF ABOUT 90-145, A RATIO OF NEUTRALIZATION NUMBER TO SAPONIFICATION NUMBER BELOW ABOUT 0.25 AND SAYBOLT UNIVERSAL VISCOSITY AT 210* F. ABOVE ABOUT 1500 SECONDS.
Claim 2
Dependent Claim
94 words
A LUBRICATING COMPOSITION ADAPTED TO FORM EMULSIONS OF THE WATER IN OIL TYPE IN THE PRESENCE OF WATER, CONSISTING ESSENTIALLY OF A MINERAL LUBRICATING OIL OF PREDOMINANTLY NAPHTHENIC CHARACTER HAVING A SAYBOLT UNIVERSAL VISCOSITY AT 100* F. IN THE RANGE FROM ABOUT 400 TO 1500 SECONDS, AND ABOUT 1-10 PER CENT BY WEIGHT OF A PETROLEUM OXIDATE CHARACTERIZED BY A MAXIMUM NEUTRALIZATION NUMBER OF ABOUT 35, A SAPONIFICATION NUMBER OF ABOUT 90-145, A RATIO OF NEUTRALIZATION NUMBER TO SAPONIFICATION NUMBER BELOW ABOUT 0.25 AND SAYBOLT UNIVERSAL VISCOSITY AT 210* F. ABOVE ABOUT 1500 SECONDS.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-12-12 | 1959-06-13 | 1959-12-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-12-12 | 1963-06-13 | 1963-12-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-12-12 | 1967-06-13 | 1967-12-13 | $7700.00 | Window Closed / Lapsed |