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US3751332A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bicomponent self-crimping modacrylic textile fiber
Assignee: Eastman Kodak Co
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Filing: 1972-03-07
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Granted: 1973-08-07
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Expires: 1992-03-07
Abstract
Abstract BICOMPONENT TEXTILE FIBERS COMPRISING MIXTURES OF AN ACRYLONITRILE-VINYLIDENE CHLORIDE COPOLYMER, A POLY(NISOPROPYL ACRYLAMIDE) HOMOPOLYMER, AND A CELLULOSE ESTER. THESE FIBERS ARE CHARACTERIZED BY THEIR SELF-CRIMPING PROPERTIES.
Inventors
- 👤 F Chen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 05:30
CPC Classifications
D; D01; D01F; D01F8/00; D01F8/04; D01F8/08; Y; Y10; Y10S; Y10S264/00; Y10S264/26; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2922; Y10T428/2924
Claims Analysis
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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) | 1976-08-06 | 1977-02-05 | 1977-08-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-08-06 | 1981-02-05 | 1981-08-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-08-06 | 1985-02-05 | 1985-08-07 | $7700.00 | Window Closed / Lapsed |