US2944973A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Di-ester fluids with improved water tolerance
Assignee: Union Carbide Corp
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Filing: 1955-11-14
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Granted: 1960-07-12
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Expires: 1975-11-14
Abstract
No abstract record available.
Inventors
- 👤 Theodore W Langer
- 👤 Blake F Mago
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 06:31
CPC Classifications
C; C10; C10M; C10M3/00; C10M2207/00; C10M2207/02; C10M2207/023; C10M2207/28; C10M2207/282; C10M2207/34; C10M2209/00; C10M2209/02; C10M2209/08; C10M2209/084; C10M2209/10; C10M2209/103; C10M2209/104; C10M2209/105; C10M2209/108; C10M2219/00; C10M2219/10; C10M2219/104; C10M2219/108; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/041; C10M2223/042; C10M2229/00; C10M2229/02; C10M2229/04; C10M2229/05; C10N; C10N2020/00; C10N2020/01; C10N2030/00; C10N2030/08; C10N2040/00; C10N2040/06; C10N2040/12; C10N2040/13
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
93 words
A LUBRICANT AND HYDRAULIC FLUID HAVING IMPROVED VISCOMETRIC STABILITY AND LOW TEMPERATURE WATER TOLERANCE, CONSITING ESSENTIALLY OF A MIXTURE COMPOSED OF AT LEAST ONE ALIPHATIC DIESTER SELECTED FROM THE GROUP CONSISTING OF THE HIGHER ALKYL ADIPATES, SEBACATES, AZELATES AND PIMELATES, AND FROM 2 TO 22 1/2 PERCENT OF AT LEAST ONE HIGH VISCOSITY ALKYL POLYOXYALKYLENE GLYCOL ETHER SELECTED FROM THE GROUP CONSISTING OF LOWER ALKYL MONO- AND DI-ETHERS OF POLYOXYPROPYLENE AND POLYOXYETHYLENE GLYCOLS, THE VISCOSITY OF SAID ETHER RANGING FROM ABOUT 59 SAYBOLT UNIVERSALS SECONDS TO ABOUT 3000 SAYBOLT UNIVERSAL SECONDS AT 100*F.
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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) | 1963-07-12 | 1964-01-11 | 1964-07-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-07-12 | 1968-01-11 | 1968-07-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-07-12 | 1972-01-11 | 1972-07-12 | $7700.00 | Window Closed / Lapsed |