Patent US5458801A successfully refreshed from Google Patents.
US2999731A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dyeing of normal wool
Assignee: Woodlyn Corp
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Filing: 1958-09-15
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Granted: 1961-09-12
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Expires: 1978-09-15
Abstract
No abstract record available.
Inventors
- 👤 Harding Arthur Jacob Immins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 16:46
CPC Classifications
D; D06; D06P; D06P3/00; D06P3/02; D06P3/04; D06P3/14; D06P3/16; D06P1/00; D06P1/0096; D06P1/44; D06P1/62; D06P1/621; D06P1/622; D06P1/625; D06P1/628; D06P5/00; D06P5/001; Y; Y10; Y10S; Y10S8/00; Y10S8/907; Y10S8/908; Y10S8/912; Y10S8/916; Y10S8/917
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
152 words
A PROCESS FOR NON-UNIFORMLY DYEING A WOOL TEXTILE MATERIAL WHOSE WOOL CONTENT CONSISTS SUBSTANTIALLY ENTIRELY OF NORMAL WOOL FIBERS WHICH COMPRISES TREATING SAID TEXTILE MATERIAL, IN THE ABSENNCE OF CHLORINATED WOOL AND OTHER FORMS OF WOOL TREATED TO ALTER THE DYESTUFF AFFINITY THEREOF AS COMPARED TO NORMAL WOOL, WITH AN AQUEOUS SOLUTION CONTAINING A CONDENSATION PRODUCT WHICH RENDERS SOME OF THE AMINO ACIDS PRESENT IN WOOL AT LEAST PARTIALLY RESISTANT TO DYEING WITH DYESTUFFS WHICH NORMALLY DYE WOOL, SAID CONDENSATION PRODUCT BEING SELECTED FROM THE GROUP CONSISTING OF CONDENSATION PRODUCTS OF ALDEHYDES AND AROMATIC SULPHONIC ACIDS AND WATER-SOLUBLE SALTS OF CONDENSATION PRODUCTS OF ALDHEYDES AND AROMATIC SULPHONIC ACIDS, A WATER-SOLUBLE ORGANIC ALIPHATIC ACID WHICH IS NON-INJURIUOS TO WOOL AND AT LEAST ONE DYESTUFF WHICH WILL DYE WOOL AND WHICH CONTAINS AT LEAST TWO SULPHONIC ACID GROUPS IN THE MOLECULE, THE SA ID AQUEOUS SOLUTION HAVING AN INITIAL PH OF BETWEEN 2.8AND 4.9.
Claim 2
Dependent Claim
152 words
A PROCESS FOR NON-UNIFORMLY DYEING A WOOL TEXTILE MATERIAL WHOSE WOOL CONTENT CONSISTS SUBSTANTIALLY ENTIRELY OF NORMAL WOOL FIBERS WHICH COMPRISES TREATING SAID TEXTILE MATERIAL, IN THE ABSENNCE OF CHLORINATED WOOL AND OTHER FORMS OF WOOL TREATED TO ALTER THE DYESTUFF AFFINITY THEREOF AS COMPARED TO NORMAL WOOL, WITH AN AQUEOUS SOLUTION CONTAINING A CONDENSATION PRODUCT WHICH RENDERS SOME OF THE AMINO ACIDS PRESENT IN WOOL AT LEAST PARTIALLY RESISTANT TO DYEING WITH DYESTUFFS WHICH NORMALLY DYE WOOL, SAID CONDENSATION PRODUCT BEING SELECTED FROM THE GROUP CONSISTING OF CONDENSATION PRODUCTS OF ALDEHYDES AND AROMATIC SULPHONIC ACIDS AND WATER-SOLUBLE SALTS OF CONDENSATION PRODUCTS OF ALDHEYDES AND AROMATIC SULPHONIC ACIDS, A WATER-SOLUBLE ORGANIC ALIPHATIC ACID WHICH IS NON-INJURIUOS TO WOOL AND AT LEAST ONE DYESTUFF WHICH WILL DYE WOOL AND WHICH CONTAINS AT LEAST TWO SULPHONIC ACID GROUPS IN THE MOLECULE, THE SA ID AQUEOUS SOLUTION HAVING AN INITIAL PH OF BETWEEN 2.8AND 4.9.
References Cited (Backward Citations)
US2179371A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-09-11 | 1965-03-13 | 1965-09-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-09-11 | 1969-03-13 | 1969-09-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-09-11 | 1973-03-13 | 1973-09-12 | $7700.00 | Window Closed / Lapsed |