Patent US3069218A successfully refreshed from Google Patents.
US3069218A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dyed acrylonitrile containing textile having controlled shrinkage and processes for forming same
Assignee: Individual
•
Filing: 1959-06-30
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Granted: 1962-12-18
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Expires: 1979-06-30
Abstract
No abstract record available.
Inventors
- 👤 Hermes Julius
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 15:35
CPC Classifications
D; D06; D06P; D06P1/00; D06P1/44; D06P1/64; D06P1/651; D06P1/65106; D06P1/65125; D06P3/00; D06P3/70; D06P3/76; D06P7/00; D06P7/005; Y; Y10; Y10S; Y10S8/00; Y10S8/03; Y10S8/92; Y10S8/927
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
96 words
A PROCESS FOR SIMULTANEOUSLY DYEING AND INDUCING CONTROLLED SHRINKAGE IN POLYMERIC FILAMENTS CONTAINING AT LEAST 50 PERCENT BY WEIGHT OF ACEYLONITRILE, AFTER FORMATION AND DURING HEAT PROCESSING OF THE YARN AFTER STRETCHING WHICH COMPRISES IMMERSING SAID FILAMENTS IN A HEATED AQUEOUS BATH MAINTAINED AT A TEMPERATURE ABOVE 80*C. FOR A PERIOD OF FROM 5 TO 20 SECONDS, SAOD BATH CONTAINING FROM 2 TO ABOUT 20 PERCENT BY VOLUME OF AN ALKYLENE CARBONATE HAVING FROM 3 TO 5 CARBON ATOMS AND A DYESTUFF, AND STRETCHING SAID FILAMENTS FROM ABOUT 30 TO 70 PERCENT OF THEIR ORIGINAL LENGTH.
Claim 2
Dependent Claim
96 words
A PROCESS FOR SIMULTANEOUSLY DYEING AND INDUCING CONTROLLED SHRINKAGE IN POLYMERIC FILAMENTS CONTAINING AT LEAST 50 PERCENT BY WEIGHT OF ACEYLONITRILE, AFTER FORMATION AND DURING HEAT PROCESSING OF THE YARN AFTER STRETCHING WHICH COMPRISES IMMERSING SAID FILAMENTS IN A HEATED AQUEOUS BATH MAINTAINED AT A TEMPERATURE ABOVE 80*C. FOR A PERIOD OF FROM 5 TO 20 SECONDS, SAOD BATH CONTAINING FROM 2 TO ABOUT 20 PERCENT BY VOLUME OF AN ALKYLENE CARBONATE HAVING FROM 3 TO 5 CARBON ATOMS AND A DYESTUFF, AND STRETCHING SAID FILAMENTS FROM ABOUT 30 TO 70 PERCENT OF THEIR ORIGINAL LENGTH.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-12-17 | 1966-06-18 | 1966-12-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-12-17 | 1970-06-18 | 1970-12-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-12-17 | 1974-06-18 | 1974-12-18 | $7700.00 | Window Closed / Lapsed |