Patent US3104931A successfully refreshed from Google Patents.
US3104931A
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Process for dyeing wool
Assignee: BASF Corp
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Filing: 1959-03-09
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Granted: 1963-09-24
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Expires: 1979-03-09
Abstract
No abstract record available.
Inventors
- 👤 Casty Richard
- 👤 Abel Heinz
- 👤 Maeder Arthur
- 👤 Berger Alfred
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:41
CPC Classifications
D; D06; D06P; D06P1/00; D06P1/44; D06P1/60; D06P1/607; D06P1/6076; D06P3/00; D06P3/02; D06P3/04; D06P3/10; Y; Y10; Y10S; Y10S8/00; Y10S8/907; Y10S8/916; Y10S8/917
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
55 words
A PROCESS FOR DYEING WOOL WITH ACID DYESTUFFS, WHICH COMPRISES TREATING THE WOOL IN AN AQUEOUS MEDIUM WITH A DYESTUFF WHICH CONTAINS AT LEAST THREE SULFONIC ACID GROUPS AND IS CAPABLE OF ENTERING INTO CHEMICAL COMBINATION WITH THE WOOL, AND CARRYING OUT THE TREATMENT IN THE PRESENCE OF A COMPOUND WHICH CORRESPONDS TO THE FORMULA
Claim 2
Dependent Claim
55 words
A PROCESS FOR DYEING WOOL WITH ACID DYESTUFFS, WHICH COMPRISES TREATING THE WOOL IN AN AQUEOUS MEDIUM WITH A DYESTUFF WHICH CONTAINS AT LEAST THREE SULFONIC ACID GROUPS AND IS CAPABLE OF ENTERING INTO CHEMICAL COMBINATION WITH THE WOOL, AND CARRYING OUT THE TREATMENT IN THE PRESENCE OF A COMPOUND WHICH CORRESPONDS TO THE FORMULA
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) | 1966-09-23 | 1967-03-25 | 1967-09-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-09-23 | 1971-03-25 | 1971-09-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-09-23 | 1975-03-25 | 1975-09-24 | $7700.00 | Window Closed / Lapsed |