US2703318A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stabilized sulfur-containing additives for lubricants
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1950-12-16
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Granted: 1955-03-01
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Expires: 1970-12-16
Abstract
No abstract record available.
Inventors
- 👤 Walter E Waddey
- 👤 James M Phelan
- 👤 Dilworth T Rogers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 23:06
CPC Classifications
C; C10; C10M; C10M135/00; C10M135/02; C07; C07F; C07F9/00; C07F9/02; C10M2219/00; C10M2219/02; C10M2219/022; C10M2219/024; C10M2223/00; C10M2223/12; C10N; C10N2040/00; C10N2040/08; C10N2040/20; C10N2040/22; C10N2050/00; C10N2050/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
72 words
A STABLE SULFUR-CONTAINING ORGANIC PRODUCT COMPRISING A SULFURIZED MEMBER SELECTED FROM THE GROUP CONSISTING OF ANIMAL AND VEGETABLE OILS, FATS, ROSINS, AND THE ACID, ESTER, HYDROGENATED AND LOWER ALKYL DERIVATIVES THEREOF, SAID PRODUCT BEING STABILIZED BY COOKING AFTER SULFURIZATION WITH 0.02 TO 1 PART BY WEIGHT, BASED ON THE SULFURIZED MATERIAL, OF AN ACTIVE OLEFINIC HYDROCARBON AT A TEMPERATURE WITHIN THE RANGE OF 60* TO 400* F. FOR ONE-FOURTH TO 20 HOURS.
Claim 2
Dependent Claim
72 words
A STABLE SULFUR-CONTAINING ORGANIC PRODUCT COMPRISING A SULFURIZED MEMBER SELECTED FROM THE GROUP CONSISTING OF ANIMAL AND VEGETABLE OILS, FATS, ROSINS, AND THE ACID, ESTER, HYDROGENATED AND LOWER ALKYL DERIVATIVES THEREOF, SAID PRODUCT BEING STABILIZED BY COOKING AFTER SULFURIZATION WITH 0.02 TO 1 PART BY WEIGHT, BASED ON THE SULFURIZED MATERIAL, OF AN ACTIVE OLEFINIC HYDROCARBON AT A TEMPERATURE WITHIN THE RANGE OF 60* TO 400* F. FOR ONE-FOURTH TO 20 HOURS.
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) | 1958-02-28 | 1958-08-30 | 1959-03-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-02-28 | 1962-08-30 | 1963-03-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-02-28 | 1966-08-30 | 1967-03-01 | $7700.00 | Window Closed / Lapsed |