US3738803A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dyeing of textile fibers in a solvent medium
Assignee: STX GROUPEMENT D'INTERET ECONOMIQUE FR
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Filing: 1971-12-12
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Granted: 1973-06-12
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Expires: 1991-12-12
Abstract
Abstract TREATMENT OF TEXTILE FIBERS SUCH AS DYEING, SIZING, MOTHPROOFING, ETC. IS ACCOMPLISHED BY THE "EXHAUSTION" METHOD USING A BATH OF A SOLVENT FOR THE TREATING AGENT AND A DILUENT IN WHICH THE TREATING AGENT IS RELATIVELY INSOLUBLE, AT AN ELEVATED TEMPERATURE, THE SOLVENT BEING PROGRESSIVELY REMOVED FROM THE BATH IN THE LIQUID OR VAPOR PHASE DURING THE TREATING OPERATION RESULTING IN A HOMOGENEOUS AND RESISTANT DYEING OR OTHER TREATMENT OF THE TEXTILE FIBERS AND A NEARLY COMPLETE EXHAUSTION OF THE TREATING AGENT.
Inventors
- 👤 W Hess
- 👤 R Blanc
- 👤 G Ramier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 08:38
CPC Classifications
D; D06; D06P; D06P1/00; D06P1/90; D06P1/92; D06P1/928; D06M; D06M23/00; D06M23/10; D06P1/922; D06P1/924
Claims Analysis
Total Claims: 0
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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) | 1976-06-11 | 1976-12-11 | 1977-06-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-06-11 | 1980-12-11 | 1981-06-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-06-11 | 1984-12-11 | 1985-06-12 | $7700.00 | Window Closed / Lapsed |