US3033788A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Foam inhibited lubricating oil composition
Assignee: Gulf Research and Development Co
•
Filing: 1958-03-19
•
Granted: 1962-05-08
•
Expires: 1978-03-19
Abstract
No abstract record available.
Inventors
- 👤 Charles E Trautman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:54
CPC Classifications
C; C10; C10M; C10M171/00; C10M171/004; C07; C07F; C07F7/00; C07F7/02; C07F7/025; C10M2203/00; C10M2203/02; C10M2203/022; C10M2203/024; C10M2203/04; C10M2203/10; C10M2203/102; C10M2203/104; C10M2203/106; C10M2203/108; C10M2205/00; C10M2205/02; C10M2205/026; C10M2205/22; C10M2207/00; C10M2207/02; C10M2207/023; C10M2207/025; C10M2207/026; C10M2207/08; C10M2207/28; C10M2209/00; C10M2209/02; C10M2209/08; C10M2209/084; C10M2209/10; C10M2209/101; C10M2211/00; C10M2211/02; C10M2211/024; C10M2211/06; C10M2211/08; C10M2215/00; C10M2215/02; C10M2215/06; C10M2215/064; C10M2215/065; C10M2219/00; C10M2219/02; C10M2219/024; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/041; C10M2223/042; C10M2223/043; C10M2227/00; C10M2227/02; C10M2229/00; C10M2229/04; C10M2229/045; C10M2229/046; C10M2229/047; C10M2229/048; C10N; C10N2070/00; C10N2070/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
103 words
A LUBRICATING OIL COMPOSITION OF REDUCED FOAMING PROPERTIES COMPRISING A MAJOR AMOUNT OF A MINERAL LUBRICATING OIL HAVING FOAMING TENDENCIES AND A SMALL AMOUNT, SUFFICIENT TO IMPROVE SAID FOAMING TENDENCIES, OF A LIQUID ORGANO-SILICATE WHICH HAS BEEN SUBJECTED TO IONIZING RADIATION FOR A TIME SUFFICIENT FOR SAID ORGANO-SILICATE TO ABSORB ABOUT 6 TO ABOUT 1000 MEAGAREPS. OF RADIATION WHILE MAINTAINING THE BULK TEMPERATURE OF THE ORGANO-SILICATE BELOW ITS DECOMPOSITION TEMPERATURE AND WHICH IS STABLY DISPERSED IN THE OIL, SAID ORGANO-SILICATE BEING SELECTED FROM THE GROUP CONSISTING OF ALKYL, ARYL, ARALKYL, ALKARYL AND HETEROCYCLIC ORTHO SILICATES, CONTAINING A MINIMUM TOTAL OF 10 CARBON ATOMS.
Claim 2
Dependent Claim
103 words
A LUBRICATING OIL COMPOSITION OF REDUCED FOAMING PROPERTIES COMPRISING A MAJOR AMOUNT OF A MINERAL LUBRICATING OIL HAVING FOAMING TENDENCIES AND A SMALL AMOUNT, SUFFICIENT TO IMPROVE SAID FOAMING TENDENCIES, OF A LIQUID ORGANO-SILICATE WHICH HAS BEEN SUBJECTED TO IONIZING RADIATION FOR A TIME SUFFICIENT FOR SAID ORGANO-SILICATE TO ABSORB ABOUT 6 TO ABOUT 1000 MEAGAREPS. OF RADIATION WHILE MAINTAINING THE BULK TEMPERATURE OF THE ORGANO-SILICATE BELOW ITS DECOMPOSITION TEMPERATURE AND WHICH IS STABLY DISPERSED IN THE OIL, SAID ORGANO-SILICATE BEING SELECTED FROM THE GROUP CONSISTING OF ALKYL, ARYL, ARALKYL, ALKARYL AND HETEROCYCLIC ORTHO SILICATES, CONTAINING A MINIMUM TOTAL OF 10 CARBON ATOMS.
References Cited (Backward Citations)
US2375007A
Cited
US2416504A
Cited
US2632736A
Cited
US2702793A
Cited
US2766220A
Cited
US2904481A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-05-07 | 1965-11-06 | 1966-05-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-05-07 | 1969-11-06 | 1970-05-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-05-07 | 1973-11-06 | 1974-05-08 | $7700.00 | Window Closed / Lapsed |