US2818385A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Grease thickened with organosilylcoated siliceous material
Assignee: EIDP Inc
•
Filing: 1954-09-14
•
Granted: 1957-12-31
•
Expires: 1974-09-14
Abstract
No abstract record available.
Inventors
- 👤 Guy B Alexander
- 👤 Ralph K Iler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:21
CPC Classifications
C; C10; C10M; C10M5/00; C10M2201/00; C10M2201/14; C10M2205/00; C10M2205/14; C10M2205/16; C10M2205/17; C10M2207/00; C10M2207/28; C10M2207/281; C10M2207/282; C10M2207/283; C10M2207/286; C10M2207/34; C10M2207/40; C10M2207/402; C10M2207/404; C10M2209/00; C10M2209/10; C10M2209/103; C10M2209/107; C10M2211/00; C10M2211/02; C10M2219/00; C10M2219/08; C10M2219/082; C10M2219/085; C10M2227/00; C10M2227/04; C10N; C10N2050/00; C10N2050/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
87 words
A GREASE COMPOSITION CONSISTING ESSENTIALLY OF A DISPERSION IN A LUBRICATING OIL, OF A THICKENER CONSISTING A SURFACE AREA OF FROM 100 TO 900 SQUARE METERS PER GRAM, AND HAVING CHEMICALLY BONDED TO SILICON ATOMS IN THE SILICA SURFACE AN ORGANOPHILIC COATING COMPRISING ORGANOSILICON GROUPS IN WHICH THE ORGANO SUBSTITUENT IS A HYDROCARBON RADICAL SELECTED FROM THE CLASS CONSISTING OF METHYL,ETHYL,PHENYL,MONOBUTYL,AND VINYL GROUPS, THE COATING BEING ABOUT FROM ONE-THIRD TO FIVE-SIXTHS COMPLETE AND THE THICKENER BEING PRESENT IN SUFFICIENT PROPORTION TO THICKEN THE OIL TO A GREASE.
Claim 2
Dependent Claim
87 words
A GREASE COMPOSITION CONSISTING ESSENTIALLY OF A DISPERSION IN A LUBRICATING OIL, OF A THICKENER CONSISTING A SURFACE AREA OF FROM 100 TO 900 SQUARE METERS PER GRAM, AND HAVING CHEMICALLY BONDED TO SILICON ATOMS IN THE SILICA SURFACE AN ORGANOPHILIC COATING COMPRISING ORGANOSILICON GROUPS IN WHICH THE ORGANO SUBSTITUENT IS A HYDROCARBON RADICAL SELECTED FROM THE CLASS CONSISTING OF METHYL,ETHYL,PHENYL,MONOBUTYL,AND VINYL GROUPS, THE COATING BEING ABOUT FROM ONE-THIRD TO FIVE-SIXTHS COMPLETE AND THE THICKENER BEING PRESENT IN SUFFICIENT PROPORTION TO THICKEN THE OIL TO A GREASE.
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) | 1960-12-30 | 1961-07-01 | 1961-12-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-12-30 | 1965-07-01 | 1965-12-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-12-30 | 1969-07-01 | 1969-12-31 | $7700.00 | Window Closed / Lapsed |