US3073662A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the production of fast dye-
Assignee: —
•
Filing: —
•
Granted: 1963-01-15
•
Expires: 1980-01-15
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:24
CPC Classifications
D; D06; D06P; D06P1/00; D06P1/22; D06P1/38; D06P3/00; D06P3/58; D06P3/60; D06P3/66; Y; Y10; Y10S; Y10S8/00; Y10S8/10; Y10S8/916; Y10S8/918
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
85 words
A PROCESS FOR THE PRODUCTION OF FAST DYEINGS, WHICH COMPRISES DYEING COTTON WITH A DYESTUFF HAVING IN ITS MOLECULE ONE TO THREE WATER-SOLUBILIZING GROUPS AND AN ACYLATABLE NH2 GROUP, TREATING THE COTTON PRIOR TO THE FIXATION OF THE DYESTUFF ON THE FIBER WITH A COMPOUND HAVING IN ITS MOLECULE A MEMBER SELECTED FROM THE GROUP CONSISTING OF DI-EPOXY AND BIS-(DI-HYDROXY) CONVERTIBLE TO DIEPOXY, GROUPS, AND SUBJECTING THE COTTON IMPREGNATED WITH THE DYESTUFF AND THE EPOXY COMPOUND TO A HEAT TREATMENT BETWEEN 100 AND 180* C.
Claim 2
Dependent Claim
85 words
A PROCESS FOR THE PRODUCTION OF FAST DYEINGS, WHICH COMPRISES DYEING COTTON WITH A DYESTUFF HAVING IN ITS MOLECULE ONE TO THREE WATER-SOLUBILIZING GROUPS AND AN ACYLATABLE NH2 GROUP, TREATING THE COTTON PRIOR TO THE FIXATION OF THE DYESTUFF ON THE FIBER WITH A COMPOUND HAVING IN ITS MOLECULE A MEMBER SELECTED FROM THE GROUP CONSISTING OF DI-EPOXY AND BIS-(DI-HYDROXY) CONVERTIBLE TO DIEPOXY, GROUPS, AND SUBJECTING THE COTTON IMPREGNATED WITH THE DYESTUFF AND THE EPOXY COMPOUND TO A HEAT TREATMENT BETWEEN 100 AND 180* C.
References Cited (Backward Citations)
US2741532A
Cited
US1981295A
Cited
US2252039A
Cited
US2455083A
Cited
US2752269A
Cited
US2741531A
Cited
US2785158A
Cited
US2730427A
Cited
US2723924A
Cited
US2761868A
Cited
US2829071A
Cited
US2774691A
Cited
US2903442A
Cited
US2906748A
Cited
US2869971A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-01-14 | 1966-07-16 | 1967-01-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-14 | 1970-07-16 | 1971-01-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-14 | 1974-07-16 | 1975-01-15 | $7700.00 | Window Closed / Lapsed |