US2693449A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Silicone greases
Assignee: Individual
•
Filing: 1949-09-23
•
Granted: 1954-11-02
•
Expires: 1969-09-23
Abstract
No abstract record available.
Inventors
- 👤 George M Hain
- 👤 William A Zisman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 11:56
CPC Classifications
C; C10; C10M; C10M7/00; C10M2207/00; C10M2207/10; C10M2207/12; C10M2207/125; C10M2207/129; C10M2219/00; C10M2219/10; C10M2219/104; C10M2219/108; C10M2229/00; C10M2229/04; C10M2229/041; C10M2229/042; C10M2229/043; C10M2229/044; C10N; C10N2010/00; C10N2010/02; C10N2020/00; C10N2020/01; C10N2050/00; C10N2050/08; C10N2050/10
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
43 words
A LUBRICATING GREASE COMPRISING A MAJOR AMOUNT OF AN ORGANO-SILICON POLYMER FLUID, A MINOR AMOUNT OF A LITHIUM SOAP SUFFICIENT TO THICKEN THE FLUID TO A GREASE CONSISTENCY AND A MINOR AMOUNT OF PHENOTHIAZINE SUFFICIENT TO INCREASE THE OXIDATION RESISTANCE OF THE GREASE.
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) | 1957-11-01 | 1958-05-03 | 1958-11-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-11-01 | 1962-05-03 | 1962-11-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-11-01 | 1966-05-03 | 1966-11-02 | $7700.00 | Window Closed / Lapsed |