US3560425A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Particulate blend of polyacrylonitrile and a latent solvent
Assignee: EIDP Inc
•
Filing: 1967-12-22
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Granted: 1971-02-02
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Expires: 1987-12-22
Abstract
Abstract DRY BLENDS OF ACRYLONITRILE POLYMER AND A LATENT SOLVENT SUCH AS DIMETHYL SULPHOXIDE-ETHYLENE GLYCOL OR DIMETHYL SULPHOXIDE-WATER, THE BLENDS BEING MELT EXTRUDABLE.
Inventors
- 👤 Leon E Wolinski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:01
CPC Classifications
C; C08; C08J; C08J3/00; C08J3/02; C08J3/09; C08J3/091; C08J3/097; C08J2333/00; C08J2333/18; C08J2333/20
Claims Analysis
Total Claims: 0
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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) | 1974-02-01 | 1974-08-03 | 1975-02-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-01 | 1978-08-03 | 1979-02-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-01 | 1982-08-03 | 1983-02-02 | $7700.00 | Window Closed / Lapsed |