US2985644A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sulfurized oil-soluble esters of chlorendic acid
Assignee: Sinclair Refining Co
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Filing: 1960-01-12
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Granted: 1961-05-23
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Expires: 1980-01-12
Abstract
No abstract record available.
Inventors
- 👤 Dorinson Amos
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 05:25
CPC Classifications
C; C10; C10M; C10M135/00; C10M135/02; C10M2219/00; C10M2219/02; C10M2219/024; C10N; C10N2040/00; C10N2040/02; C10N2040/04; C10N2040/042; C10N2040/044; C10N2040/046; C10N2040/20; C10N2040/22; C10N2080/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
52 words
A SULFURIZED OIL-SOLUBLE ESTER OF CHLORENDIC ACID PRODUCED BY REACTING SULFUR AND AN OIL-SOLUBLE CHLORENDIC ACID ESTER IN A RATIO OF ABOUT ONE-HALF TO FOUR GRAM-ATOMS OF SULFUR TO ONE MOLE OF CHLORENDIC ACID ESTER IN WHICH SAID ESTER GROUP IS AN UNSATURATED HYDROCARBON RADICAL CONTAINING FROM 3 TO 20 CARBON ATOMS.
Claim 2
Dependent Claim
52 words
A SULFURIZED OIL-SOLUBLE ESTER OF CHLORENDIC ACID PRODUCED BY REACTING SULFUR AND AN OIL-SOLUBLE CHLORENDIC ACID ESTER IN A RATIO OF ABOUT ONE-HALF TO FOUR GRAM-ATOMS OF SULFUR TO ONE MOLE OF CHLORENDIC ACID ESTER IN WHICH SAID ESTER GROUP IS AN UNSATURATED HYDROCARBON RADICAL CONTAINING FROM 3 TO 20 CARBON ATOMS.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-05-22 | 1964-11-21 | 1965-05-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-05-22 | 1968-11-21 | 1969-05-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-05-22 | 1972-11-21 | 1973-05-23 | $7700.00 | Window Closed / Lapsed |