Patent US2944870A successfully refreshed from Google Patents.
US2944870A
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US
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New colouring process
Assignee: Imperial Chemical Industries Ltd
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Filing: 1958-09-24
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Granted: 1960-07-12
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Expires: 1978-09-24
Abstract
No abstract record available.
Inventors
- 👤 Atkinson John Reginald
- 👤 Johnson Eric Leslie
- 👤 Mills Walter Percival
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 06:50
CPC Classifications
C; C09; C09B; C09B62/00; C09B62/44; C09B62/54; C09B62/56; C09B62/443; C09B62/445; Y; Y10; Y10S; Y10S8/00; Y10S8/92; Y10S8/924; Y10S8/927
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
86 words
PROCESS FOR THE COLORATION OF SYNTHETIC POLYMERIC TEXTILE MATERIALS SELECTED FROM THE CLASS CONSISTING OF POLYAMIDE AND MODIFIED POLYACRYLONITRILE TEXTILE MATERIALS WHICH COMPRISES TREATING THE SAID SYNTHETIC POLYMERIC TEXTILE MATERIALS WITH A WATER-INSOLUBLE ANTHRAQUINONE DYESTUFF CONTAINING AT LEAST ONE GROUP SELECTED FROM THE CLASS CONSISTING OF W-OXIRANYLALKOXY, W HALOGENOALKOXY, W-OXIRANYLALKYLAMINO, AND W-HALOGENOALKYLAMINO, EACH GROUP BEING ATTACHED TO A CARBON ATOM OF THE ANTHRAQUINONE NUCLEUS THROUGH A MEMBER SELECTED FROM THE CLASS CONSISTING OF A DIRECT LINK, AND ALKOXY RADICAL, AN ALKYLAMINO RADICAL, AND AN ARYLAMINO RADICAL.
Claim 2
Dependent Claim
86 words
PROCESS FOR THE COLORATION OF SYNTHETIC POLYMERIC TEXTILE MATERIALS SELECTED FROM THE CLASS CONSISTING OF POLYAMIDE AND MODIFIED POLYACRYLONITRILE TEXTILE MATERIALS WHICH COMPRISES TREATING THE SAID SYNTHETIC POLYMERIC TEXTILE MATERIALS WITH A WATER-INSOLUBLE ANTHRAQUINONE DYESTUFF CONTAINING AT LEAST ONE GROUP SELECTED FROM THE CLASS CONSISTING OF W-OXIRANYLALKOXY, W HALOGENOALKOXY, W-OXIRANYLALKYLAMINO, AND W-HALOGENOALKYLAMINO, EACH GROUP BEING ATTACHED TO A CARBON ATOM OF THE ANTHRAQUINONE NUCLEUS THROUGH A MEMBER SELECTED FROM THE CLASS CONSISTING OF A DIRECT LINK, AND ALKOXY RADICAL, AN ALKYLAMINO RADICAL, AND AN ARYLAMINO RADICAL.
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) | 1963-07-12 | 1964-01-11 | 1964-07-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-07-12 | 1968-01-11 | 1968-07-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-07-12 | 1972-01-11 | 1972-07-12 | $7700.00 | Window Closed / Lapsed |