US2761845A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Foam inhibition of oils
Assignee: ExxonMobil Technology and Engineering Co
•
Filing: 1955-03-28
•
Granted: 1956-09-04
•
Expires: 1975-03-28
Abstract
No abstract record available.
Inventors
- 👤 Dilworth T Rogers
- 👤 John P Mcdermott
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 14:59
CPC Classifications
C; C10; C10M; C10M1/00; C10M1/08; C10M2207/00; C10M2207/02; C10M2207/023; C10M2207/027; C10M2207/28; C10M2207/282; C10M2207/34; C10M2207/40; C10M2207/404; C10M2209/00; C10M2209/10; C10M2209/103; C10M2209/105; C10M2209/108; C10M2219/00; C10M2219/04; C10M2219/044; C10M2219/08; C10M2219/082; C10M2219/087; C10M2219/088; C10M2219/089; C10M2223/00; C10M2223/12; C10M2223/121; C10M2227/00; C10M2227/04; C10N; C10N2040/00; C10N2040/02; C10N2040/04; C10N2040/042; C10N2040/044; C10N2040/046; C10N2040/08; C10N2050/00; C10N2050/10; C10N2070/00; C10N2070/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
90 words
THE PROCESS OF SUBSTANTIALLY REDUCING THE FOAMPROMOTING TENDENCY IN A LUBRICATING OIL COMPOSITION OF AN OIL-SOLUBLE DETERGENT ADDITIVE SELECTED FROM THE GROUP CONSISTING OF METAL SULFONATES, METAL ALKYL PHENOL SULFIDES, PHOSPHOSULFURIZED METAL ALKY PHENOL SULFIDES AND MIXTURES THEREOF, WHICH COMPRISES ADDING ABOUT 0.1 TO 50% BY WEIGHT, BASED ON THE ADDITIVE, OF AN ALIPHATED ALCOHOL OF THE C1 TO C5 RANGE TO AN OIL SOLUTION CONTAINING SAID ADDITIVE AND BLOWING ACID OIL SOLUTION WITH AN INERT GAS AT AN ELEVATED TEMPERATURE UNTIL ESSENTIALLY ALL OF SAID ALCOHOL IS REMOVED THEREFROM.
Claim 2
Dependent Claim
90 words
THE PROCESS OF SUBSTANTIALLY REDUCING THE FOAMPROMOTING TENDENCY IN A LUBRICATING OIL COMPOSITION OF AN OIL-SOLUBLE DETERGENT ADDITIVE SELECTED FROM THE GROUP CONSISTING OF METAL SULFONATES, METAL ALKYL PHENOL SULFIDES, PHOSPHOSULFURIZED METAL ALKY PHENOL SULFIDES AND MIXTURES THEREOF, WHICH COMPRISES ADDING ABOUT 0.1 TO 50% BY WEIGHT, BASED ON THE ADDITIVE, OF AN ALIPHATED ALCOHOL OF THE C1 TO C5 RANGE TO AN OIL SOLUTION CONTAINING SAID ADDITIVE AND BLOWING ACID OIL SOLUTION WITH AN INERT GAS AT AN ELEVATED TEMPERATURE UNTIL ESSENTIALLY ALL OF SAID ALCOHOL IS REMOVED THEREFROM.
References Cited (Backward Citations)
US1430858A
Cited
US2702723A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-09-04 | 1960-03-05 | 1960-09-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-09-04 | 1964-03-05 | 1964-09-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-09-04 | 1968-03-05 | 1968-09-04 | $7700.00 | Window Closed / Lapsed |