US3363972A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for dyeing and printing natural nitrogen-containing fibrous materials
Assignee: BASF Schweiz AG
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Filing: 1964-01-27
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Granted: 1968-01-16
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Expires: 1984-01-27
Abstract
No abstract record available.
Inventors
- 👤 Paul Ulrich
- 👤 Hans Niederer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:32
CPC Classifications
D; D06; D06P; D06P1/00; D06P1/44; D06P1/64; D06P1/642; D06P1/649; D06P1/6494; D06P1/6491; D06P1/6492; D06P1/653; D06P3/00; D06P3/02; D06P3/04; D06P3/10; D06P3/30; Y; Y10; Y10S; Y10S8/00; Y10S8/907; Y10S8/916; Y10S8/917
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
68 words
PROCESS FOR COLORING WOOL WITH A DYESTUFF SELECTED FROM THE GROUP CONSISTING OF ACID WOOL DYES, REACTIVE DYES AND METAL COMPLEX DYES WHICH ARE ABSORBED FROM AN ACID TO NEUTRAL DYEBATH, WHICH PROCESS COMPRISES TREATING SAID WOOL AT A TEMPERATURE FROM 15 TO 40*C. WITH AN AQUEOUS PREPARATION CONTAINING SAID DYESTUFF AND AT LEAST 5%, CALCULATED ON THE WHOLE PREPARATION, OF AT LEAST ONE COMPOUND OF THE FORMULA
Claim 2
Dependent Claim
68 words
PROCESS FOR COLORING WOOL WITH A DYESTUFF SELECTED FROM THE GROUP CONSISTING OF ACID WOOL DYES, REACTIVE DYES AND METAL COMPLEX DYES WHICH ARE ABSORBED FROM AN ACID TO NEUTRAL DYEBATH, WHICH PROCESS COMPRISES TREATING SAID WOOL AT A TEMPERATURE FROM 15 TO 40*C. WITH AN AQUEOUS PREPARATION CONTAINING SAID DYESTUFF AND AT LEAST 5%, CALCULATED ON THE WHOLE PREPARATION, OF AT LEAST ONE COMPOUND OF THE FORMULA
References Cited (Backward Citations)
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Cited
US3211514A
Cited
FR762985A
Cited
FR1196948A
Cited
US3208990A
Cited
FR1273731A
Cited
US3223470A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-01-15 | 1971-07-17 | 1972-01-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-01-15 | 1975-07-17 | 1976-01-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-01-15 | 1979-07-17 | 1980-01-16 | $7700.00 | Window Closed / Lapsed |