Patent US2764467A successfully refreshed from Google Patents.
US2764467A
Expired / Lapsed
US
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Process of inhibiting acid fading and the products thereof
Assignee: Celanese Corp
•
Filing: 1952-01-05
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Granted: 1956-09-25
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Expires: 1972-01-05
Abstract
No abstract record available.
Inventors
- 👤 Victor S Salvin
- 👤 Anthony B Conciatori
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 22:33
CPC Classifications
D; D06; D06M; D06M13/00; D06M13/322; D06M13/35; D06M13/355; D06M13/358; Y; Y10; Y10S; Y10S8/00; Y10S8/92; Y10S8/921
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
43 words
PROCESS FOR IMPROVING THE FASTNESS TO ACID FADING OF COLORATIONS ON DYED CELLULOSE ACETATE TEXTILE MATERIAL, WHICH COMPRISES TREATING THE DYED CELLULOSE ACETATE TEXTILE MATERIAL WITH AN INHIBITOR SELECTED FROM THE GROUP CONSISTING OF 2-ANILINO-4-B-ETHOXYETHYLAMINO-6-AMINO-STRIAZINE - 1:3:5 AND 2,4-DIANILINO - 6 - AMINO-S-TRI-S-TRIAZINE-1:3:5,
References Cited (Backward Citations)
US2083122A
Cited
US2387547A
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US2176506A
Cited
US2374259A
Cited
US2298401A
Cited
US2328961A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-09-25 | 1960-03-26 | 1960-09-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-09-25 | 1964-03-26 | 1964-09-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-09-25 | 1968-03-26 | 1968-09-25 | $7700.00 | Window Closed / Lapsed |