US3096142A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for dye levelling with lactams
Assignee: BASF SE
•
Filing: 1958-07-09
•
Granted: 1963-07-02
•
Expires: 1978-07-09
Abstract
No abstract record available.
Inventors
- 👤 Hartmark Bjarne
- 👤 Schuster Curt
- 👤 Herrle Karl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 16:22
CPC Classifications
C; C07; C07D; C07D207/00; C07D207/02; C07D207/18; C07D207/22; C07D207/24; C07D207/26; C07D207/263; C07D207/27; C07C; C07C255/00; D; D06; D06P; D06P1/00; D06P1/22; Y; Y10; Y10S; Y10S8/00; Y10S8/916; Y10S8/918
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
45 words
IN THE PROCESS OF DYEING TEXTILE MATERIALS SELECTED FROM THE GROUP CONSISTING OF CELLULOSE AND STAPLE FIBER YARN OF REGENERATED CELLULOSE AND STAPLE FIBER SULFUR DYESTUFFS THE STEP WHICH COMPRISES LEVELLING THE DYEINGS IN AN ALKALINE BATH WITH A COMPOUND OF THE FOLLOWING GENERAL FORMULA
Claim 2
Dependent Claim
45 words
IN THE PROCESS OF DYEING TEXTILE MATERIALS SELECTED FROM THE GROUP CONSISTING OF CELLULOSE AND STAPLE FIBER YARN OF REGENERATED CELLULOSE AND STAPLE FIBER SULFUR DYESTUFFS THE STEP WHICH COMPRISES LEVELLING THE DYEINGS IN AN ALKALINE BATH WITH A COMPOUND OF THE FOLLOWING GENERAL FORMULA
References Cited (Backward Citations)
US2282724A
Cited
US2225604A
Cited
US2555354A
Cited
US2775599A
Cited
BE524317A
Cited
US2955008A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-07-01 | 1966-12-31 | 1967-07-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-07-01 | 1970-12-31 | 1971-07-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-07-01 | 1974-12-31 | 1975-07-02 | $7700.00 | Window Closed / Lapsed |