US Patent No: 7,967,873
Number of patents in Portfolio can not be more than 2000
Dyed textile article and dye bath assistant
Stats
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Jun 28, 2011
Issued date -
Mar 29, 2006
filing date -
11/392,278
serial no -
In Force
status
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Abstract
A dyed textile article. The dyed textile article includes a synthetic fiber substrate and a dye affixed to the substrate in a dye process that includes a using a dye assistant having an amidic nitrogen adjacent to an aromatic ring. The dye assistant may be N-methyl formanilide. The substrate of the present inventions may be a variety of substrates and is most preferably an aromatic polyamide. The present inventions also include a dye bath and a method of dyeing using a dyeing assistant having an amidic nitrogen adjacent to an aromatic ring.
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First Claim
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International Classification(s)
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Cited Art
| Patent Info | (Count) | # Cites | Year |
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| 4,705,527 Process for the printing of shaped articles derived from aramid fibers | 16 | 1986 | |
| 4,981,488 Nomex printing | 19 | 1989 | |
| 5,215,545 Process for dyeing or printing/flame retarding aramids with N-octyl-pyrrolidone swelling agent | 14 | 1992 | |
| 6,840,967 Dye diffusion promoting agents for aramids | 6 | 1994 | |
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| 6,551,362 Composition for dyeing material of synthetic aromatic polyamide fibers comprising a cationic dye and novel dye assistant | 1 | 2001 | |
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| 4,812,139 Dyed polyester fabrics with improved lightfastness | 63 | 1988 | |
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| 2005/0155,163 Dye mixtures | 2 | 2004 | |
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| 5,250,245 Process for preparing polyester fine filaments | 26 | 1993 | |
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| 6,645,468 Medicinal aerosol formulation | 6 | 2002 | |
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| 5,207,803 Method for dyeing aromatic polyamide fibrous materials: N,N-diethyl(meta-toluamide) dye carrier | 11 | 1990 | |
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| 4,780,105 Composition for dyeing material of synthetic aromatic polyamide fibers: cationic dye and n-alkyl phthalimide | 13 | 1987 | |
Patent Citation Ranking
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 3.5 Year Payment | $1600.00 | $800.00 | $400.00 | Dec 28, 2014 |
| 7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Dec 28, 2018 |
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Dec 28, 2022 |
| Fee | Large entity fee | small entity fee | micro entity fee |
|---|---|---|---|
| Surcharge - 3.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
| Surcharge - 7.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
| Surcharge - 11.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
| Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
| Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |