US2750341A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lubricating grease comprising a synthetic oil and a complex thickener
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1951-12-28
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Granted: 1956-06-12
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Expires: 1971-12-28
Abstract
No abstract record available.
Inventors
- 👤 Arnold J Morway
- 👤 David W Young
- 👤 Jr Paul V Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 05:05
CPC Classifications
C; C10; C10M; C10M7/00; C10M5/00; C10M2203/00; C10M2203/10; C10M2203/102; C10M2207/00; C10M2207/10; C10M2207/12; C10M2207/121; C10M2207/122; C10M2207/125; C10M2207/129; C10M2207/28; C10M2207/282; C10M2207/30; C10M2207/302; C10M2207/304; C10M2207/34; C10M2209/00; C10M2209/10; C10M2209/11; C10M2209/111; C10M2209/112; C10M2215/00; C10M2215/02; C10M2215/06; C10M2215/064; C10M2215/065; C10M2219/00; C10M2219/08; C10M2219/082; C10M2219/084; C10M2219/10; C10M2219/104; C10M2219/108; C10M2221/00; C10M2221/04; C10M2221/043; C10M2229/00; C10M2229/02; C10M2229/04; C10M2229/041; C10M2229/043; C10M2229/044; C10M2229/05; C10N; C10N2010/00; C10N2010/02; C10N2010/04; C10N2030/00; C10N2030/08; C10N2040/00; C10N2040/12; C10N2040/13; C10N2050/00; C10N2050/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
147 words
A LUBRICATING GREASE COMPOSITION COMPRISING A MAJOR PROPORTION OF A SUBSTANTIALLY COMPLETELY ESTERIFIED COMPLEX DIBASIC ACID-DIHYDRIC ALCOHOL-MONOVALENT SUBSTITUENT ALIPHATIC ESTER OIL BASE OF LUBRICATING GRADE AND VISCOSITY, SAID DIBASIC ACID BEING SELECTED FROM THE GROUP CONSISTING OF SEBACIC AND ADIPIC ACID, SAID DIHYDRIC ALCOHOL BEING TRIETHYLENE GLYCOL AND SAID MONOVALENT SUBSTITUENT BEING SELECTED FROM THE GROUP CONSISTING OF ETHYL HEXANOIC ACID, HEXANOL AND A MIXTURE OF C10 TO C18 ALCOHOLS HAVING AN AVERAGE OF 13.5 CARBON ATOMS, AND 5 TO 25% BY WEIGHT, BASED ON THE TOTAL COMPOSITION, OF A PREFORMED COMPLEX SOAP THICKENER CONSISTING ESSENTIALLY OF ALKALI METAL SOAP OF FATTY ACID IN THE C10 TO C22 RANGE AND ALKALI METAL SALT OF A CARBOXYLIC ACID HAVING A MOLECULAR WEIGHT OF BELOW ABOUT 100, THE MOLAR RATIO OF SAID FATTY ACID SOAP TO SAID CARBOXYLIC ACID SALT BEING IN THE RANGE OF ABOUT 0.5:1 TO 2:1.
Claim 2
Dependent Claim
147 words
A LUBRICATING GREASE COMPOSITION COMPRISING A MAJOR PROPORTION OF A SUBSTANTIALLY COMPLETELY ESTERIFIED COMPLEX DIBASIC ACID-DIHYDRIC ALCOHOL-MONOVALENT SUBSTITUENT ALIPHATIC ESTER OIL BASE OF LUBRICATING GRADE AND VISCOSITY, SAID DIBASIC ACID BEING SELECTED FROM THE GROUP CONSISTING OF SEBACIC AND ADIPIC ACID, SAID DIHYDRIC ALCOHOL BEING TRIETHYLENE GLYCOL AND SAID MONOVALENT SUBSTITUENT BEING SELECTED FROM THE GROUP CONSISTING OF ETHYL HEXANOIC ACID, HEXANOL AND A MIXTURE OF C10 TO C18 ALCOHOLS HAVING AN AVERAGE OF 13.5 CARBON ATOMS, AND 5 TO 25% BY WEIGHT, BASED ON THE TOTAL COMPOSITION, OF A PREFORMED COMPLEX SOAP THICKENER CONSISTING ESSENTIALLY OF ALKALI METAL SOAP OF FATTY ACID IN THE C10 TO C22 RANGE AND ALKALI METAL SALT OF A CARBOXYLIC ACID HAVING A MOLECULAR WEIGHT OF BELOW ABOUT 100, THE MOLAR RATIO OF SAID FATTY ACID SOAP TO SAID CARBOXYLIC ACID SALT BEING IN THE RANGE OF ABOUT 0.5:1 TO 2:1.
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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) | 1959-06-12 | 1959-12-12 | 1960-06-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-06-12 | 1963-12-12 | 1964-06-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-06-12 | 1967-12-12 | 1968-06-12 | $7700.00 | Window Closed / Lapsed |