US2623834A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coloring process for nylon
Assignee: Imperial Chemical Industries Ltd
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Filing: 1949-11-18
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Granted: 1952-12-30
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Expires: 1969-11-18
Abstract
No abstract record available.
Inventors
- 👤 Armitage Norman Andrew
- 👤 Henderson John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 17:48
CPC Classifications
D; D06; D06P; D06P5/00; D06P5/13; D06P5/138; Y; Y10; Y10S; Y10S8/00; Y10S8/21
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
89 words
A PROCESS FOR TINTING NYLON FIBERS, THREADS OR YARNS WITH FUGITIVE COLORS WHEREIN PERMANENT DISCOLORATION OF SAID NYLON IS PREVENTED, WHICH COMPRISES TREATING SAID NYLON WITH AN AQUEOUS SUSPENSION CONTAINING A FUGITIVE COLOR AND A SURFACE ACTIVE AGENT, SAID COLOR CONSISTING OF INORGANIC PIGMENT, SUBJECTING THE NYLON TO A MECHANICAL TEXTILE WORKING PROCESS, SETTING THE WORKED NYLON BY THE ACTION OF STEAM UNDER PRESSURE UNDER CONDITIONS SUCH THAT SOME SOFTENING OF THE NYLON MAY OCCUR, AND THEN REMOVING SAID PIGMENT BY TREATING SAID NYLON WITH AN AQUEOUS DETERGENT SOLUTION.
Claim 2
Dependent Claim
89 words
A PROCESS FOR TINTING NYLON FIBERS, THREADS OR YARNS WITH FUGITIVE COLORS WHEREIN PERMANENT DISCOLORATION OF SAID NYLON IS PREVENTED, WHICH COMPRISES TREATING SAID NYLON WITH AN AQUEOUS SUSPENSION CONTAINING A FUGITIVE COLOR AND A SURFACE ACTIVE AGENT, SAID COLOR CONSISTING OF INORGANIC PIGMENT, SUBJECTING THE NYLON TO A MECHANICAL TEXTILE WORKING PROCESS, SETTING THE WORKED NYLON BY THE ACTION OF STEAM UNDER PRESSURE UNDER CONDITIONS SUCH THAT SOME SOFTENING OF THE NYLON MAY OCCUR, AND THEN REMOVING SAID PIGMENT BY TREATING SAID NYLON WITH AN AQUEOUS DETERGENT SOLUTION.
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) | 1955-12-30 | 1956-06-30 | 1956-12-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-12-30 | 1960-06-30 | 1960-12-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-12-30 | 1964-06-30 | 1964-12-30 | $7700.00 | Window Closed / Lapsed |