Patent DE644923C successfully refreshed from Google Patents.
US2947730A
Expired / Lapsed
US
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Polymers of vinylpentachlorophenyl sulfide and method of making the same
Assignee: Dow Chemical Co
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Filing: 1957-01-03
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Granted: 1960-08-02
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Expires: 1977-01-03
Abstract
No abstract record available.
Inventors
- 👤 Earl D Holly
- 👤 William R Nummy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 21:35
CPC Classifications
C; C08; C08F; C08F246/00; C08F220/00; C08F220/02; C08F220/10; C08F220/12; C08F220/14; C08F220/42; C08F220/44
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
60 words
A SOLID POLYMERIC COMPOSITION OF MATTER CONSISTING ESSENTIALLY FROM 20 TO 50 PERCENT ON A MOLAR BNASIS OF VINYLPENTACHLOROPHENYL SULFIDE COPOLYMERIZED WITH FROM 80 TO 50 MOLE PERCENT OF AT LEAST ONE OTHER MONOETHYLENICALLY COPOLYMERIZABLE VINYL COMPOUND SELECTED FROM THE GROUP CONSISTING OF (A) MONOVINYL AROMATIC HYDROCARBONS OF THE BENZENE SERIES, (B) ALKYL ESTERS OF ACRYLIC ACID, AND (C) ACRYLONITRILE.
Claim 2
Dependent Claim
60 words
A SOLID POLYMERIC COMPOSITION OF MATTER CONSISTING ESSENTIALLY FROM 20 TO 50 PERCENT ON A MOLAR BNASIS OF VINYLPENTACHLOROPHENYL SULFIDE COPOLYMERIZED WITH FROM 80 TO 50 MOLE PERCENT OF AT LEAST ONE OTHER MONOETHYLENICALLY COPOLYMERIZABLE VINYL COMPOUND SELECTED FROM THE GROUP CONSISTING OF (A) MONOVINYL AROMATIC HYDROCARBONS OF THE BENZENE SERIES, (B) ALKYL ESTERS OF ACRYLIC ACID, AND (C) ACRYLONITRILE.
References Cited (Backward Citations)
US2490875A
Cited
US2737529A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-08-02 | 1964-02-01 | 1964-08-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-08-02 | 1968-02-01 | 1968-08-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-08-02 | 1972-02-01 | 1972-08-02 | $7700.00 | Window Closed / Lapsed |