US2956853A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mordant dyeing process
Assignee: Bayer AG
•
Filing: 1957-05-07
•
Granted: 1960-10-18
•
Expires: 1977-05-07
Abstract
No abstract record available.
Inventors
- 👤 Dach Bernhard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:54
CPC Classifications
C; C09; C09B; C09B69/00; C09B69/02; D; D06; D06P; D06P1/00; D06P1/14; D06P1/145
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
76 words
IN A PROCESS FOR DYEING AND PRINTING A TEXTILE MATERIAL WITH HEAVY METALCONTAINING CONDENSATED IMINOPYRROLENINES, THE IMPROVEMENT WHICH COMPRISES PRETREATING THE TEXTILE MATERIAL WITH A COMPOUND SELECTED FROM THE GROUP CONSISTING OF A SULFURATED CHLOROPHENOL, A SULFURATED-THIOPHENOL, A TANNIN TARTAR EMETIC MORDANT, A SULFONATED MEMBER OF THE BENZIDINE SERIES, A SULFONATED MEMBER OF THE DIPHENYLAMINE SERIES, A SULFONATED MEMBER OF THE DIAMINO-DIPHENYLUREA SERIES, A SULFONATED MEMBER OF THE STILBENE SERIES, AND A SULFONATED SUBSTANTIVE AZO DYESTUFF.
Claim 2
Dependent Claim
76 words
IN A PROCESS FOR DYEING AND PRINTING A TEXTILE MATERIAL WITH HEAVY METALCONTAINING CONDENSATED IMINOPYRROLENINES, THE IMPROVEMENT WHICH COMPRISES PRETREATING THE TEXTILE MATERIAL WITH A COMPOUND SELECTED FROM THE GROUP CONSISTING OF A SULFURATED CHLOROPHENOL, A SULFURATED-THIOPHENOL, A TANNIN TARTAR EMETIC MORDANT, A SULFONATED MEMBER OF THE BENZIDINE SERIES, A SULFONATED MEMBER OF THE DIPHENYLAMINE SERIES, A SULFONATED MEMBER OF THE DIAMINO-DIPHENYLUREA SERIES, A SULFONATED MEMBER OF THE STILBENE SERIES, AND A SULFONATED SUBSTANTIVE AZO DYESTUFF.
References Cited (Backward Citations)
US2635535A
Cited
US2683643A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-10-18 | 1964-04-18 | 1964-10-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-10-18 | 1968-04-18 | 1968-10-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-10-18 | 1972-04-18 | 1972-10-18 | $7700.00 | Window Closed / Lapsed |