US3758269A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Anionically modified nylon in a jute backed carpet cation dyes and long chain alkyl quaternary ammonium salt applied to
Assignee: Sybron Transition Corp
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Filing: 1971-10-12
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Granted: 1973-09-11
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Expires: 1991-10-12
Abstract
Abstract THE STAINING OF CATIONIC DYEABLE NYLON CARPET FACE FIBER BY CATIONIC DYESTUFFS USED IN DYEING JUTE-BACKING IS PREVENTED WITHOUT SIGNIFICANT LOSS OF COLOR YIELD ON THE JUTE BY DYEING THE JUTE BELOW ABOUT 90* F. IN THE PRESENCE OF A CATIONIC SURFACE ACTIVE AGENT OF THE FORMULA: WHERE X- IS ANY WATER-SOLUBLE ANION R1 IS AN ALIPHATIC HYDROCARBON GROUP CONTAINING AT LEAST 8 CARBON ATOMS, R4 IS -H, -CH3 OR OTHER HYDROCARBON ALKYL GROUP, R2 AND R3 ARE EITHER HYDROGEN ALIPHATIC HYDROCARBON GROUPS, CYCLOALIPHATIC GROUPS OR 2-HYDROXY-PROPYL GROUPS, AND R1, R2, R3 AND R4 CONTAIN A TOTAL OF 16 TO 45 CARBON ATOMS. R1-N(+)(-R2)(-R3)-R4 X(-)
Inventors
- 👤 R Feigin
- 👤 F Bartsch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 04:00
CPC Classifications
D; D06; D06M; D06M15/00; D06M15/19; D06M15/37; D06M15/39; D06M15/41; D06P; D06P1/00; D06P1/44; D06P1/655; D06P1/66; D06P3/00; D06P3/02; D06P3/04; D06P3/24; D06P3/242; D06P3/82; D06P3/8204; D06P3/8209; Y; Y10; Y10S; Y10S8/00; Y10S8/90; Y10S8/901; Y10S8/916; Y10S8/918; Y10S8/929
Claims Analysis
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References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-09-10 | 1977-03-12 | 1977-09-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-09-10 | 1981-03-12 | 1981-09-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-09-10 | 1985-03-12 | 1985-09-11 | $7700.00 | Window Closed / Lapsed |