US2663612A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for coloring hydrophobic fiber
Assignee: EIDP Inc
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Filing: 1950-05-10
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Granted: 1953-12-22
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Expires: 1970-05-10
Abstract
No abstract record available.
Inventors
- 👤 Jr Joseph Whitton Gibson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:13
CPC Classifications
D; D06; D06P; D06P5/00; D06P5/20; D06P5/2066; D06P5/2077; D06B; D06B19/00; D06B19/0005; D06B19/0076; D06P1/00; D06P1/90; D06P1/92; D06P1/928; D06P3/00; D06P3/34; D06P3/52; D06P3/523; D06P3/54; D06P3/56; Y; Y10; Y10S; Y10S68/00; Y10S68/90; Y10S68/901; Y10S8/00; Y10S8/04; Y10S8/92; Y10S8/921; Y10S8/922; Y10S8/933
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
71 words
A PROCESS FOR CONTINUOUSLY COLORING POLYETHYLENE TEREPHTHALATE FIBER, WHICH COMPRISES IMPREGNATING THE SAME CONTINUOUSLY WITH AN ORGANIC COLORING MATERIAL FROM AN AQUEOUS MEDIUM, DRYING CONTINUOUSLY THE IMPREGNATED FIBER AND THEN EXPOSING THE SAME CONTINUOUSLY TO DRY HEAT AT A TEMPERATURE BETWEEN 180* AND 230* C. FOR A PERIOD OF 5 TO 60 SECONDS, WHEREBY TO EFFECT FIXATION OF SAID COLORING MATERIALS ON THE FIBER AND UNIFORM DISTRIBUTION THEREOF WIHTIN THE FIBER.
Claim 2
Dependent Claim
71 words
A PROCESS FOR CONTINUOUSLY COLORING POLYETHYLENE TEREPHTHALATE FIBER, WHICH COMPRISES IMPREGNATING THE SAME CONTINUOUSLY WITH AN ORGANIC COLORING MATERIAL FROM AN AQUEOUS MEDIUM, DRYING CONTINUOUSLY THE IMPREGNATED FIBER AND THEN EXPOSING THE SAME CONTINUOUSLY TO DRY HEAT AT A TEMPERATURE BETWEEN 180* AND 230* C. FOR A PERIOD OF 5 TO 60 SECONDS, WHEREBY TO EFFECT FIXATION OF SAID COLORING MATERIALS ON THE FIBER AND UNIFORM DISTRIBUTION THEREOF WIHTIN THE FIBER.
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) | 1956-12-21 | 1957-06-22 | 1957-12-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-12-21 | 1961-06-22 | 1961-12-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-12-21 | 1965-06-22 | 1965-12-22 | $7700.00 | Window Closed / Lapsed |