Patent US2944976A successfully refreshed from Google Patents.
US2944976A
Expired / Lapsed
US
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Functional fluids
Assignee: Celanese Corp
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Filing: 1956-03-19
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Granted: 1960-07-12
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Expires: 1976-03-19
Abstract
No abstract record available.
Inventors
- 👤 Elmer E Waters
- 👤 John J Shatynski
- 👤 Jr John E Koch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 16:18
CPC Classifications
C; C10; C10M; C10M173/00; C10M173/02; C10M2201/00; C10M2201/02; C10M2207/00; C10M2207/02; C10M2207/021; C10M2207/022; C10M2209/00; C10M2209/10; C10M2209/103; C10M2209/104; C10M2209/105; C10M2215/00; C10M2215/02; C10M2215/04; C10M2215/044; C10M2215/14; C10M2215/24; C10M2215/26; C10M2219/00; C10M2219/10; C10M2219/102; C10M2219/104; C10M2219/106; C10M2229/00; C10M2229/04; C10M2229/041; C10N; C10N2040/00; C10N2040/08; C10N2050/00; C10N2050/01
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
48 words
A FIRE-RESISTANT HYDRAULIC FLUID COMPRISING A HOMOGENEOUS MIXTURE OF ABOUT 40 TO 60% OF WATER, ABOUT 15 TO 45% OF A GLYCOL, AND ABOUT 15 TO 45% OF A POLYOXYETHYLENE ETHER OF CASTOR OIL, SAID POLYOXYETHYLENE ETHER CONTAINING AT LEAST SUFFICIENT ETHEYLENE OXIDE UNITS TO MAKE IT WATER-SOLUBLE.
Claim 2
Dependent Claim
48 words
A FIRE-RESISTANT HYDRAULIC FLUID COMPRISING A HOMOGENEOUS MIXTURE OF ABOUT 40 TO 60% OF WATER, ABOUT 15 TO 45% OF A GLYCOL, AND ABOUT 15 TO 45% OF A POLYOXYETHYLENE ETHER OF CASTOR OIL, SAID POLYOXYETHYLENE ETHER CONTAINING AT LEAST SUFFICIENT ETHEYLENE OXIDE UNITS TO MAKE IT WATER-SOLUBLE.
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) | 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 |