US2960468A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lubricant composition
Assignee: California Research LLC
•
Filing: 1958-01-16
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Granted: 1960-11-15
•
Expires: 1978-01-16
Abstract
No abstract record available.
Inventors
- 👤 Edward G Foehr
- 👤 Neal W Furby
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 15:47
CPC Classifications
C; C10; C10M; C10M167/00; C10M2205/00; C10M2205/22; C10M2207/00; C10M2207/02; C10M2207/023; C10M2207/027; C10M2209/00; C10M2209/02; C10M2209/08; C10M2209/082; C10M2209/084; C10M2209/10; C10M2209/101; C10M2217/00; C10M2217/04; C10M2217/042; C10M2217/043; C10M2219/00; C10M2219/04; C10M2219/044; C10M2219/08; C10M2219/082; C10M2221/00; C10M2221/02; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/045; C10N; C10N2010/00; C10N2010/04; C10N2070/00; C10N2070/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
145 words
A LUBRICANT COMPOSITION CONSISTING ESSENTIALLY OF A WAXY MINERAL LUBRICATING OIL AS ITS SOLE OIL CONSISTENT, MINOR PROPORTIONS OF CALCIUM PETROLEUM SULFONATE AND CALCIUM DODECYL PHENATE SUFFICIENT TO ENHANCE THE DETERGENCY AND STABILITY OF THE OIL, MINOR PROPORTIONS OF ZINC DIODECYLPHENYL DITHIOPHOSPHATE AND DIPARAFFIN SULFIDE SUFFICIENT TO INHIBIT OXIDATION AND CORROSION CHARACTERISTICS OF THE OIL AND THE COMBINATION OF (A) A POLYMERIC HIGHER ALKYL ESTER OF A LOWER ALIPHATIC A,B-UNSATURATED MONOCARBOXYLIC ACID OF NOT MORE THAN 7 CARBON ATOMS HAVING AN AVERAGE MOLECULAR WEIGHT ABOVE ABOUT 2000 AND FROM 8 TO 24 CARBON ATOMS IN EACH OF THE ALKYL GROUPS WITH (B) A NAPHTHALENE-PETROLEUM WAX CONDENSATE POUR DEPRESSANT, SAID COMBINATION BEING PRESENT IN AMOUNTS SUFICIENT TO DEPRESS THE POUR POINT OF THE MINERAL LUBRICATING OIL AND THE (A) COMPONENT CONSTITUTING FROM ABOUT 35 TO ABOUT 75% BY WEIGHT OF THE TOTAL (A) AND (B) COMPONENTS.
Claim 2
Dependent Claim
145 words
A LUBRICANT COMPOSITION CONSISTING ESSENTIALLY OF A WAXY MINERAL LUBRICATING OIL AS ITS SOLE OIL CONSISTENT, MINOR PROPORTIONS OF CALCIUM PETROLEUM SULFONATE AND CALCIUM DODECYL PHENATE SUFFICIENT TO ENHANCE THE DETERGENCY AND STABILITY OF THE OIL, MINOR PROPORTIONS OF ZINC DIODECYLPHENYL DITHIOPHOSPHATE AND DIPARAFFIN SULFIDE SUFFICIENT TO INHIBIT OXIDATION AND CORROSION CHARACTERISTICS OF THE OIL AND THE COMBINATION OF (A) A POLYMERIC HIGHER ALKYL ESTER OF A LOWER ALIPHATIC A,B-UNSATURATED MONOCARBOXYLIC ACID OF NOT MORE THAN 7 CARBON ATOMS HAVING AN AVERAGE MOLECULAR WEIGHT ABOVE ABOUT 2000 AND FROM 8 TO 24 CARBON ATOMS IN EACH OF THE ALKYL GROUPS WITH (B) A NAPHTHALENE-PETROLEUM WAX CONDENSATE POUR DEPRESSANT, SAID COMBINATION BEING PRESENT IN AMOUNTS SUFICIENT TO DEPRESS THE POUR POINT OF THE MINERAL LUBRICATING OIL AND THE (A) COMPONENT CONSTITUTING FROM ABOUT 35 TO ABOUT 75% BY WEIGHT OF THE TOTAL (A) AND (B) COMPONENTS.
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) | 1963-11-15 | 1964-05-16 | 1964-11-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-11-15 | 1968-05-16 | 1968-11-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-11-15 | 1972-05-16 | 1972-11-15 | $7700.00 | Window Closed / Lapsed |