US2586594A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preparation of drying oils from diolefins
Assignee: Standard Oil Development Co
•
Filing: 1947-10-29
•
Granted: 1952-02-19
•
Expires: 1967-10-29
Abstract
No abstract record available.
Inventors
- 👤 Arundale Erving
- 👤 Anthony H Gleason
- 👤 Fred W Banes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 21:25
CPC Classifications
C; C08; C08F; C08F36/00; C08F36/02; C08F36/04; Y; Y10; Y10S; Y10S260/00; Y10S260/28; Y10S585/00; Y10S585/929; Y10S585/945
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
67 words
IN A SELECTIVE POLYMERIZATION PROCESS FOR PREPARING DRYING OILS THE IMPROVEMENT WHICH CONSISTS ESSENTIALLY OF THE STEPS OF HEATING A CONJUGATED DIOLEFIN OF 4 TO 6 CARBON ATOMS AT A TEMPERATURE BETWEEN 50 AND 150* C. UNDER A PRESSURE RANGING FROM 3 TO 30 ATMOSPHERES AND IN THE PRESENCE OF 1 TO 3 MOL PERCENT PER MOL OF MONOMER OF A HYDROCARBON SOLUBLE CATALYST HAVING THE FORMULA
Claim 2
Dependent Claim
67 words
IN A SELECTIVE POLYMERIZATION PROCESS FOR PREPARING DRYING OILS THE IMPROVEMENT WHICH CONSISTS ESSENTIALLY OF THE STEPS OF HEATING A CONJUGATED DIOLEFIN OF 4 TO 6 CARBON ATOMS AT A TEMPERATURE BETWEEN 50 AND 150* C. UNDER A PRESSURE RANGING FROM 3 TO 30 ATMOSPHERES AND IN THE PRESENCE OF 1 TO 3 MOL PERCENT PER MOL OF MONOMER OF A HYDROCARBON SOLUBLE CATALYST HAVING THE FORMULA
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-02-18 | 1955-08-20 | 1956-02-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-02-18 | 1959-08-20 | 1960-02-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-02-18 | 1963-08-20 | 1964-02-19 | $7700.00 | Window Closed / Lapsed |