US2629691A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Grease manufacture
Assignee: Shell Development Co
•
Filing: 1949-12-19
•
Granted: 1953-02-24
•
Expires: 1969-12-19
Abstract
No abstract record available.
Inventors
- 👤 Walter H Peterson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:55
CPC Classifications
C; C10; C10M; C10M5/00; C10M2201/00; C10M2201/06; C10M2201/062; C10M2201/063; C10M2201/065; C10M2201/08; C10M2201/081; C10M2201/082; C10M2201/084; C10M2201/085; C10M2201/087; C10M2201/10; C10M2201/102; C10M2201/103; C10M2201/105; C10M2203/00; C10M2203/06; C10M2205/00; C10M2205/02; C10M2205/022; C10M2205/026; C10M2205/028; C10M2205/14; C10M2207/00; C10M2207/10; C10M2207/12; C10M2207/125; C10M2207/129; C10M2207/28; C10M2207/282; C10M2207/287; C10M2207/289; C10M2207/34; C10M2207/40; C10M2207/404; C10M2215/00; C10M2215/02; C10M2215/04; C10M2215/086; C10M2215/24; C10M2215/26; C10M2215/28; C10M2217/00; C10M2217/04; C10M2217/046; C10M2217/06; C10M2219/00; C10M2219/04; C10M2219/044; C10M2219/08; C10M2219/082; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/041; C10M2223/042; C10M2223/06; C10M2223/061; C10N; C10N2010/00; C10N2010/02; C10N2010/04; C10N2010/06; C10N2010/08; C10N2040/00; C10N2040/02; C10N2050/00; C10N2050/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
67 words
IN THE PROCESS FOR THE PREPARATION OF A GREASE COMPRISING LUBICATING OIL, A GELLING AMOUNT OF A COLLOIDAL METALLIC OXIDE GEL IN HIGHLY EXPANDED FORM AND CAPABLE OF FORMING A GREASE WITH SAID OIL AND A HYDROPHOBIC SURFACE ACTIVE AGENT, THE IMPROVEMENT WHICH COMPRISES HEATING SAID INGREDIENTS AT A TEMPERATURE BETWEEN ABOUT 165 AND ABOUT 200*C. FOR A PERIOD BETWEEN ABOUT 30 MINUTES AND ABOUT 120 MINUTES.
Claim 2
Dependent Claim
67 words
IN THE PROCESS FOR THE PREPARATION OF A GREASE COMPRISING LUBICATING OIL, A GELLING AMOUNT OF A COLLOIDAL METALLIC OXIDE GEL IN HIGHLY EXPANDED FORM AND CAPABLE OF FORMING A GREASE WITH SAID OIL AND A HYDROPHOBIC SURFACE ACTIVE AGENT, THE IMPROVEMENT WHICH COMPRISES HEATING SAID INGREDIENTS AT A TEMPERATURE BETWEEN ABOUT 165 AND ABOUT 200*C. FOR A PERIOD BETWEEN ABOUT 30 MINUTES AND ABOUT 120 MINUTES.
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) | 1956-02-24 | 1956-08-25 | 1957-02-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-02-24 | 1960-08-25 | 1961-02-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-02-24 | 1964-08-25 | 1965-02-24 | $7700.00 | Window Closed / Lapsed |