US2586593A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Manufacture of interpolymers of styrene with unsaturated fatty acids and polyhydric alcoholic esters thereof
Assignee: Sherwin Williams Co
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Filing: 1949-10-27
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Granted: 1952-02-19
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Expires: 1969-10-27
Abstract
No abstract record available.
Inventors
- 👤 Armitage Frank
- 👤 Sleightholme John Joseph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 18:11
CPC Classifications
C; C08; C08F; C08F212/00; C08F212/02; C08F212/04; C08F212/06; C08F212/08; C08F242/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
66 words
A PROCESS FOR THE MANUFACTURE OF INTERPOLYMERS COMPRISING HEATING A COMPOUND SELECTED FROM THE CLASS CONSISTING OF STYRENE, NUCLEAR ALKYL SUBSTITUTED DERIVATIVES THEREOF AND NUCLEAR HALOGEN SUBSTITUTED DERIVATIVES THEREOF AND A COMPOUND SELECTED FROM THE CLASS CONSISTING OF DRYING OIL FATTY ACIDS AND POLYHYDRIC ALCOHOLIC ESTERS THEREOF, IN THE PRESENCE OF AN ALPHA TERPENE WHICH HAS BEEN ACTIVATED BY BLOWING WITH A GAS COMPRISING MOLECULAR OXYGEN.
Claim 2
Dependent Claim
66 words
A PROCESS FOR THE MANUFACTURE OF INTERPOLYMERS COMPRISING HEATING A COMPOUND SELECTED FROM THE CLASS CONSISTING OF STYRENE, NUCLEAR ALKYL SUBSTITUTED DERIVATIVES THEREOF AND NUCLEAR HALOGEN SUBSTITUTED DERIVATIVES THEREOF AND A COMPOUND SELECTED FROM THE CLASS CONSISTING OF DRYING OIL FATTY ACIDS AND POLYHYDRIC ALCOHOLIC ESTERS THEREOF, IN THE PRESENCE OF AN ALPHA TERPENE WHICH HAS BEEN ACTIVATED BY BLOWING WITH A GAS COMPRISING MOLECULAR OXYGEN.
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) | 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 |