US2739121A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thickened hydrophobic lubricating compositions
Assignee: Evonik Operations GmbH
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Filing: 1952-12-15
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Granted: 1956-03-20
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Expires: 1972-12-15
Abstract
No abstract record available.
Inventors
- 👤 Weihe Adolf
- 👤 Schweitzer Otto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 14:32
CPC Classifications
C; C10; C10M; C10M5/00; C10M2201/00; C10M2201/06; C10M2201/062; C10M2201/14; C10M2207/00; C10M2207/04; C10M2207/044; C10M2207/40; C10M2207/404; C10M2209/00; C10M2209/02; C10M2209/10; C10M2209/101; C10M2215/00; C10M2215/16; C10M2217/00; C10M2217/02; C10M2217/04; C10M2229/00; C10M2229/02; C10M2229/04; C10M2229/05; C10N; C10N2040/00; C10N2040/02; C10N2050/00; C10N2050/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
79 words
A THICKENED LUBRICANT COMPRISING A LUBRICATING OIL THICKENED WITH HIGHLY DISPERSED FINELY DIVIDED COMPOUND IN THE FORM OF AN AEROGEL SELECTED FROM THE GROUP CONSISTING OF OXIDES AND HYDRATED OXIDES OF SILICON, TITANIUM, ALUMINUM AND IRON RENDERED WATER-RESISTANT BY THE ACTION OF A COMPOUND WHICH IS CAPABLE OF FORMING POLY ADDITION PRODUCTS WITH ALCHOLIC HYDROXYL GROUPS SELECTED FROM THE GROUP CONSISTING OF EPOXY COMPOUNDS CONTAINING A TERMINAL ETHYLENE OXIDE GROUP, ORGANIC ISOCYANATES, BETA PROPIOLACTONE, DIKETENE AND DI-ALLYLIDENE PENTAERYTHRITOL ACETAL,
Claim 2
Dependent Claim
79 words
A THICKENED LUBRICANT COMPRISING A LUBRICATING OIL THICKENED WITH HIGHLY DISPERSED FINELY DIVIDED COMPOUND IN THE FORM OF AN AEROGEL SELECTED FROM THE GROUP CONSISTING OF OXIDES AND HYDRATED OXIDES OF SILICON, TITANIUM, ALUMINUM AND IRON RENDERED WATER-RESISTANT BY THE ACTION OF A COMPOUND WHICH IS CAPABLE OF FORMING POLY ADDITION PRODUCTS WITH ALCHOLIC HYDROXYL GROUPS SELECTED FROM THE GROUP CONSISTING OF EPOXY COMPOUNDS CONTAINING A TERMINAL ETHYLENE OXIDE GROUP, ORGANIC ISOCYANATES, BETA PROPIOLACTONE, DIKETENE AND DI-ALLYLIDENE PENTAERYTHRITOL ACETAL,
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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) | 1959-03-20 | 1959-09-19 | 1960-03-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-03-20 | 1963-09-19 | 1964-03-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-03-20 | 1967-09-19 | 1968-03-20 | $7700.00 | Window Closed / Lapsed |