US2799650A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Foam inhibition of oil
Assignee: ExxonMobil Technology and Engineering Co
•
Filing: 1951-08-01
•
Granted: 1957-07-16
•
Expires: 1971-08-01
Abstract
No abstract record available.
Inventors
- 👤 John P Mcdermott
- 👤 Malcolm F Hurley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 00:05
CPC Classifications
C; C10; C10M; C10M1/00; C10M1/08; B; B01; B01D; B01D19/00; B01D19/02; B01D19/04; B01D19/0404; B01D19/0431; B01D19/0436; B01D19/045; C10M2207/00; C10M2207/02; C10M2207/023; C10M2207/027; C10M2207/08; C10M2207/10; C10M2207/12; C10M2207/125; C10M2207/129; C10M2207/28; C10M2207/281; C10M2207/282; C10M2207/283; C10M2207/286; C10M2215/00; C10M2215/02; C10M2215/04; C10M2215/24; C10M2215/26; C10M2219/00; C10M2219/04; C10M2219/044; C10M2219/08; C10M2219/082; C10M2219/087; C10M2219/088; C10M2219/089; C10M2223/00; C10M2223/12; C10M2223/121; C10N; C10N2040/00; C10N2040/08; C10N2050/00; C10N2050/10
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
102 words
AN OIL COMPOSITION OF REDUCED FOAMING TENDENCIES COMPRISING A MAJOR PROPORTION OF AN ORGANIC OIL COMPOSITION OF VISCOSITY AT LEAST AS HIGH AS KEROSENE AND A MINOR DETERGENCY-IMPROVING PROPORTION OF ABOUT 5% BY WEIGHT OF A NORMALLY FOAM-PROMOTING DETERGENT ADDITIVE SELECTED FROM THE GROUP CONSISTING OF THE ALKALINE EARTH METAL SALTS OF ALKYL PHENOL SULFIDES, THE PHOSPHO-SULFURIZED DERIVATIVES OF SAID SALTS, AND MIXTURES OF SAID SALTS, WHICH HAS BEEN STIRRED AND HEATED PRIOR TO INCORPORATION IN SAID OIL, TOGETHER WITH ABOUT 0.1-25% BY WEIGHT, BASED ON THE ADDITIVE, OF MESITYL OXIDE AT A MODERATELY ELEVATED TEMPERATURE IN THE NEIGHBORHOOD OF ABOUT 160*C.
References Cited (Backward Citations)
US2430858A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-07-15 | 1961-01-14 | 1961-07-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-07-15 | 1965-01-14 | 1965-07-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-07-15 | 1969-01-14 | 1969-07-16 | $7700.00 | Window Closed / Lapsed |