US2676148A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lubricating composition containing surface-esterified siliceous solid
Assignee: EIDP Inc
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Filing: 1950-10-23
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Granted: 1954-04-20
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Expires: 1970-10-23
Abstract
No abstract record available.
Inventors
- 👤 Ralph K Iler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:13
CPC Classifications
C; C10; C10M; C10M5/00; C10M2201/00; C10M2201/14; C10M2205/00; C10M2205/18; C10M2207/00; C10M2207/02; C10M2207/021; C10M2207/28; C10M2207/282; C10M2207/34; C10M2207/40; C10M2207/404; C10M2209/00; C10M2209/02; C10M2209/10; C10M2211/00; C10M2211/04; C10M2211/044; C10M2219/00; C10M2219/08; C10M2219/082; C10M2219/085; C10M2227/00; C10M2227/02; C10N; C10N2040/00; C10N2040/02; C10N2040/08; C10N2050/00; C10N2050/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
128 words
A LUBRICATING COMPOSITION COMPRISING A WATER-INSOLUBLE LUBRICATING OIL, SAID OIL CONTAINING CARBON AS THE ONLY GROUP IV ELEMENT, AND BEING THE ONLY LUBRICATING OIL THE COMPOSITION AND AN ORGANOPHILIC PULVERULENT SOLID CONSISTING ESSENTIALLY OF SUBSTRATE PARTICLES OF INORGANIC SILICEOUS MATERIAL IN A SUPERCOLLOIDAL STATE OF SUBDIVISION HAVING CHEMICALLY BOUND THERETO PER 100 SQUARE MILLIMICRONS OF SUBSTRATE SURFACE AT LEAST 100 -OR GROUPS, WHEREIN R IS A HYDROCARBON RADICAL CONTAINING 2 TO 18 CARBON ATOMS AND THE CARBON ATOM ATTACHED TO OXYGEN IS ALSO ATTACHED TO AT LEAST ONE HYDROGEN, THE SUBSTRATE AREA OF FROM 25 ING AN AVERAGE SPECIFIC SURFACE AREA OF FROM 25 TO 900 SQUARE METERS/GRAM, AND THE WEIGHT RATIO OF OIL TO PULVERULENT SOLID IN THE COMPOSITION BEING IN THE RANGE OF 200:1 TO 0.1:
Claim 2
Dependent Claim
128 words
A LUBRICATING COMPOSITION COMPRISING A WATER-INSOLUBLE LUBRICATING OIL, SAID OIL CONTAINING CARBON AS THE ONLY GROUP IV ELEMENT, AND BEING THE ONLY LUBRICATING OIL THE COMPOSITION AND AN ORGANOPHILIC PULVERULENT SOLID CONSISTING ESSENTIALLY OF SUBSTRATE PARTICLES OF INORGANIC SILICEOUS MATERIAL IN A SUPERCOLLOIDAL STATE OF SUBDIVISION HAVING CHEMICALLY BOUND THERETO PER 100 SQUARE MILLIMICRONS OF SUBSTRATE SURFACE AT LEAST 100 -OR GROUPS, WHEREIN R IS A HYDROCARBON RADICAL CONTAINING 2 TO 18 CARBON ATOMS AND THE CARBON ATOM ATTACHED TO OXYGEN IS ALSO ATTACHED TO AT LEAST ONE HYDROGEN, THE SUBSTRATE AREA OF FROM 25 ING AN AVERAGE SPECIFIC SURFACE AREA OF FROM 25 TO 900 SQUARE METERS/GRAM, AND THE WEIGHT RATIO OF OIL TO PULVERULENT SOLID IN THE COMPOSITION BEING IN THE RANGE OF 200:1 TO 0.1:
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) | 1957-04-19 | 1957-10-19 | 1958-04-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-04-19 | 1961-10-19 | 1962-04-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-04-19 | 1965-10-19 | 1966-04-20 | $7700.00 | Window Closed / Lapsed |