US2601254A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polymeric compositions and method of shaping same
Assignee: Industrial Rayon Corp
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Filing: 1949-07-09
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Granted: 1952-06-24
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Expires: 1969-07-09
Abstract
No abstract record available.
Inventors
- 👤 Herman A Bruson
- 👤 Thomas W Riener
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 14:28
CPC Classifications
C; C08; C08J; C08J3/00; C08J3/02; C08J3/09; C08J3/091; C08J3/095; D; D01; D01F; D01F6/00; D01F6/02; D01F6/18; C08J2333/00; C08J2333/18; C08J2333/20
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
39 words
A COMPOSITION COMPRISING A POLYMER OF ACRYLONITRILE CONTAINING IN THE POLYMER MOLECULE AT LEAST 80% BY WEIGHT OF ACRYLONITRILE AND AS A SOLVENT THEREFOR A MIXTURE COMPRISING ETHYLENE CARBONATE AND WATER-SOLUBLE ALIPHATIC POLYHYDRIC ALCOHOL MISCIBLE THEREWITH HAVING THE FORMULA
Claim 2
Dependent Claim
39 words
A COMPOSITION COMPRISING A POLYMER OF ACRYLONITRILE CONTAINING IN THE POLYMER MOLECULE AT LEAST 80% BY WEIGHT OF ACRYLONITRILE AND AS A SOLVENT THEREFOR A MIXTURE COMPRISING ETHYLENE CARBONATE AND WATER-SOLUBLE ALIPHATIC POLYHYDRIC ALCOHOL MISCIBLE THEREWITH HAVING THE FORMULA
Claim 3
Independent Claim
55 words
THE METHOD OF FORMING A SHAPED ARTICLE WHICH COMPRISES EXTRUDING INTO A LIQUID COAGULATING MEDIUM, A COMPOSITION COMPRISING A POLYMER OF ACRYLONITRILE CONTAINING IN THE POLYMER MOLECULE AT LEAST 80% BY WEIGHT OF ACRYLONITRILE AND AS A SOLVENT THEREFOR A MIXTURE COMPRISING ETHYLENE CARBONATE AND A WATER-SOLUBLE ALIPHATIC POLYHYDRIC ALCOHOL MISCIBLE THEREWITH HAVING THE FORMULA
Claim 4
Independent Claim
55 words
THE METHOD OF FORMING A SHAPED ARTICLE WHICH COMPRISES EXTRUDING INTO A LIQUID COAGULATING MEDIUM, A COMPOSITION COMPRISING A POLYMER OF ACRYLONITRILE CONTAINING IN THE POLYMER MOLECULE AT LEAST 80% BY WEIGHT OF ACRYLONITRILE AND AS A SOLVENT THEREFOR A MIXTURE COMPRISING ETHYLENE CARBONATE AND A WATER-SOLUBLE ALIPHATIC POLYHYDRIC ALCOHOL MISCIBLE THEREWITH HAVING THE FORMULA
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) | 1955-06-24 | 1955-12-24 | 1956-06-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-06-24 | 1959-12-24 | 1960-06-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-06-24 | 1963-12-24 | 1964-06-24 | $7700.00 | Window Closed / Lapsed |