Patent US3097415A successfully refreshed from Google Patents.
US3097415A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Acrylonitrile fiber and process for
Assignee: —
•
Filing: —
•
Granted: 1963-07-16
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Expires: 1980-07-16
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 21:04
CPC Classifications
D; D03; D03D; D03D27/00; D01; D01F; D01F6/00; D01F6/02; D01F6/18; D01F6/28; D01F6/38; D06; D06C; D06C29/00; D06C2700/00; D06C2700/29; D10; D10B; D10B2501/00; D10B2501/04; D10B2501/044
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
112 words
AN IMPROVED TEXTILE FIBER HAVING A HIGH RESISTANCE TO PENETRATION BY LIQUID PROCESSING AGENTS AND A SHRINKABILITY IN BOILING WATER OF AT LEAST 35%, SAID FIBER FORMED OF A SOLID ORGANIC SYNTHETIC POLYMERIC COMPOSITION COMPRISING AT LEAST 75% POLYACRYLONITRILE AND UP TO 25% OF ETHYLENICALLY UNSATURATED MONOMERS COPOLYMERIZABLE THEREWITH, SAID SOLID COMPOSITION HAVING A VOID-FREE, HIGHLY CONSOLIDATED, HIGH DENSITY INTERNAL STRUCTURE WITH A DENSITY OF GREATER THAN 1.170 GRAMS PER CUBIC CENTIMETER, A MOLECULAR ORIENTATION IN THE LONGITUDINAL DIRECTION CORRESPONDING TO A DRAWN CONDITION OF FROM ABOUT 1.5 TO ABOUT 2.5 TIMES ITS ORIGINAL LENGTH, SAID COMPOSITION EXHIBITING A DETACHABLE DEGREE OF NEGATIVE BIREFRINGENCE, SAID FIBER CONTAINING LESS THAN ABOUT 1.4% SOLVENT.
Claim 2
Dependent Claim
112 words
AN IMPROVED TEXTILE FIBER HAVING A HIGH RESISTANCE TO PENETRATION BY LIQUID PROCESSING AGENTS AND A SHRINKABILITY IN BOILING WATER OF AT LEAST 35%, SAID FIBER FORMED OF A SOLID ORGANIC SYNTHETIC POLYMERIC COMPOSITION COMPRISING AT LEAST 75% POLYACRYLONITRILE AND UP TO 25% OF ETHYLENICALLY UNSATURATED MONOMERS COPOLYMERIZABLE THEREWITH, SAID SOLID COMPOSITION HAVING A VOID-FREE, HIGHLY CONSOLIDATED, HIGH DENSITY INTERNAL STRUCTURE WITH A DENSITY OF GREATER THAN 1.170 GRAMS PER CUBIC CENTIMETER, A MOLECULAR ORIENTATION IN THE LONGITUDINAL DIRECTION CORRESPONDING TO A DRAWN CONDITION OF FROM ABOUT 1.5 TO ABOUT 2.5 TIMES ITS ORIGINAL LENGTH, SAID COMPOSITION EXHIBITING A DETACHABLE DEGREE OF NEGATIVE BIREFRINGENCE, SAID FIBER CONTAINING LESS THAN ABOUT 1.4% SOLVENT.
References Cited (Backward Citations)
US2137235A
Cited
US2157117A
Cited
US2420565A
Cited
US2674025A
Cited
US2612679A
Cited
US2721785A
Cited
US2734794A
Cited
US2888317A
Cited
US2883260A
Cited
US2821458A
Cited
US2988419A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-07-15 | 1967-01-14 | 1967-07-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-07-15 | 1971-01-14 | 1971-07-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-07-15 | 1975-01-14 | 1975-07-16 | $7700.00 | Window Closed / Lapsed |