US3567356A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reactive and disperse dyes fixed on cellulose blended fabrics travelling on drum radially passing hot gas
Assignee: Hoechst AG
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Filing: 1967-05-10
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Granted: 1971-03-02
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Expires: 1987-05-10
Abstract
Abstract PROCESS FOR THE SIMULTANEOUS FIXATION OF DISPERSE AND REACTIVE DYESTUFFS SUCH AS PHENYL-N=N-(1,4-NAPHTHALENE)-N=N-(1,4-PHENYLENE)-OH AND 1-(HO-),2-(H-O3S-O-CH2-CH2-O2S-(1,4-PHENYLENE)-N=N-), 3-(H-O3S-),7-(CH3-CO-NH-)NAPHTHALENE RESPECTIVELY, ON A FABRIC SUCH AS MADE OF A POLYESTER AND CELLULOSE FIBER BLEND BY PASSING A HEATED GAS SUCH AS AIR THROUGH SAID FABRIC WHICH IS TRAINED AROUND A PLURALITY OF PERFORATED DRUMS COVERED WITH A FINE MESH SIEVE MATERIAL OF A MESH SIZE, OF LESS THAN 1 MM. AND WHEREIN SAID FABRICS ARE PRINTED OR PADDED WITH THE AFORESAID DYESTUFFS.
Inventors
- 👤 Hans-Ulrich Von Der Eltz
- 👤 Richard Gross
- 👤 Kurt Petersen
- 👤 Jurgen Schafer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 10:16
CPC Classifications
D; D06; D06P; D06P3/00; D06P3/82; D06P3/8204; D06P3/8223; D06P3/8238; D06P3/8252; Y; Y10; Y10S; Y10S68/00; Y10S68/903
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-03-01 | 1974-08-31 | 1975-03-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-03-01 | 1978-08-31 | 1979-03-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-03-01 | 1982-08-31 | 1983-03-02 | $7700.00 | Window Closed / Lapsed |