Patent US2546167A successfully refreshed from Google Patents.
US2546167A
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Acid-fading inhibition using dibenzylethylenediamine
Assignee: Celanese Corp
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Filing: 1948-07-03
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Granted: 1951-03-27
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Expires: 1968-07-03
Abstract
No abstract record available.
Inventors
- 👤 Victor S Salvin
- 👤 Jr John R Adams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:00
CPC Classifications
D; D06; D06P; D06P3/00; D06P3/58; D06P3/60; D06P3/66; Y; Y10; Y10S; Y10S8/00; Y10S8/92; Y10S8/921
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
31 words
PROCESS FOR IMPROVING THE FASTNESS OF COLORATIONS ON DYED ORGANIC DERIVATIVE OF CELLULOSE TEXTILE MATERIAL TO ACID FADING, WHICH COMPRISES TREATING SAID DYED ORGANIC DERIVATIVE OF CELLULOSE TEXTILE MATERIAL WITH DIBENZYLETHYLENEDIAMINE.
Claim 2
Dependent Claim
31 words
PROCESS FOR IMPROVING THE FASTNESS OF COLORATIONS ON DYED ORGANIC DERIVATIVE OF CELLULOSE TEXTILE MATERIAL TO ACID FADING, WHICH COMPRISES TREATING SAID DYED ORGANIC DERIVATIVE OF CELLULOSE TEXTILE MATERIAL WITH DIBENZYLETHYLENEDIAMINE.
References Cited (Backward Citations)
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US1803008A
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US1690481A
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US1883351A
Cited
GB361362A
Cited
US2017119A
Cited
US2083122A
Cited
US2369122A
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US2416380A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-03-26 | 1954-09-25 | 1955-03-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-03-26 | 1958-09-25 | 1959-03-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-03-26 | 1962-09-25 | 1963-03-27 | $7700.00 | Window Closed / Lapsed |