Patent US3481682A successfully refreshed from Google Patents.
US3481682A
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Modifying keratinic fibers with unsaturated sulfonic acids and blending fibers so modified with fibers having different dye affinity to obtain products which are differentially dyeable
Assignee: Deering Milliken Research Corp
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Filing: 1962-12-06
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Granted: 1969-12-02
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Expires: 1982-12-06
Abstract
No abstract record available.
Inventors
- 👤 Greville Machell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:35
CPC Classifications
D; D06; D06M; D06M14/00; D06M14/02; D06M14/06; D06P; D06P1/00; D06P1/44; D06P1/52; D06P1/5207; D06P1/5214; D06P1/525; D06P1/5257; D06P3/00; D06P3/02; D06P3/04; D06P3/14; D06P3/82; D06P3/854; D06P5/00; D06P5/22; Y; Y10; Y10S; Y10S8/00; Y10S8/916; Y10S8/917
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
39 words
A PROCESS FOR MODIFYING THE CHARACTERISITICS OF WOOL FIBERS COMPRISING REACTING SAID FIBERS IN THE PRESENCE OF A REDOX CATALYST SYSTEM WITH AT LEAST ONE SULFONIC ACID COMPOUND SELECTED FROM THE GROUP CONSISTING OF THOSE REPRESENTED BY THE FORMULAE:
Claim 2
Dependent Claim
39 words
A PROCESS FOR MODIFYING THE CHARACTERISITICS OF WOOL FIBERS COMPRISING REACTING SAID FIBERS IN THE PRESENCE OF A REDOX CATALYST SYSTEM WITH AT LEAST ONE SULFONIC ACID COMPOUND SELECTED FROM THE GROUP CONSISTING OF THOSE REPRESENTED BY THE FORMULAE:
Claim 3
Dependent Claim
11 words
KERATIN FIBERS PREPARED IN ACCORDANCE WITH THE PROCESS OF CLAIM 1.
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) | 1972-12-01 | 1973-06-02 | 1973-12-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-12-01 | 1977-06-02 | 1977-12-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-12-01 | 1981-06-02 | 1981-12-02 | $7700.00 | Window Closed / Lapsed |