Patent US2534647A successfully refreshed from Google Patents.
US2534647A
Expired / Lapsed
US
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Single bath chrome dyeing process
Assignee: —
•
Filing: —
•
Granted: 1950-12-19
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Expires: 1967-12-19
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 16:36
CPC Classifications
D; D06; D06P; D06P3/00; D06P3/02; D06P3/04; D06P3/24; D06P1/00; D06P1/36; C; C09; C09B; C09B45/00; C09B45/02; C09B45/14; C09B45/16; D06P1/38; D06P3/58; D06P3/60; D06P3/66; Y; Y10; Y10S; Y10S8/00; Y10S8/916; Y10S8/917; Y10S8/92; Y10S8/924; Y10S8/926
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
44 words
A PROCESS OF PRODUCING FAST DYEINGS, WHICH COMPRISES CONDUCTING THE DYEING BY THE SINGLE BATH CHROMING PROCESS WITH A SOLUTION CONTAINING AN AGENT YIELDING CHROMIUM AND A MONOAZODYESTUFF WHICH IS FREE FROM CARBOXYLIC ACID AND SULFONIC ACID GROUPS AND CORRESPONDS TO THE GENERAL FORMULA.
Claim 2
Dependent Claim
44 words
A PROCESS OF PRODUCING FAST DYEINGS, WHICH COMPRISES CONDUCTING THE DYEING BY THE SINGLE BATH CHROMING PROCESS WITH A SOLUTION CONTAINING AN AGENT YIELDING CHROMIUM AND A MONOAZODYESTUFF WHICH IS FREE FROM CARBOXYLIC ACID AND SULFONIC ACID GROUPS AND CORRESPONDS TO THE GENERAL FORMULA.
References Cited (Backward Citations)
US2122127A
Cited
CH232370A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-12-18 | 1954-06-19 | 1954-12-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-12-18 | 1958-06-19 | 1958-12-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-12-18 | 1962-06-19 | 1962-12-19 | $7700.00 | Window Closed / Lapsed |