US3681128A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for finishing wool
Assignee: Novartis AG
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Filing: 1970-01-02
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Granted: 1972-08-01
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Expires: 1990-01-02
Abstract
Abstract A PROCESS FOR FINISHING WOOL, PREFERABLY FOR RENDERING WOOL NON-FELTING, IS PROVIDED. THE WOOL IS TREATED WITH AN AQUEOUS PREPARATION CONTAINING A REACTION PRODUCT OF BASIC POLYAMIDES AND POLYFUNCTIONAL COMPOUNDS AND AFTERWARDS DRIED. THE PROCESS IS CARRIED OUT AT 35 TO 100*C. AND PREFERABLY ACCORDING TO THE EXHAUSTION METHOD. THE WOOL TREATED IN THIS WAY IS NON-FELTING. THIS FINISHING PROCESS ADVANTAGEOUSLY CAN BE COMBINED WITH A DYEING PROCESS.
Inventors
- 👤 Alfred Berger
- 👤 Heinz Abel
- 👤 Alberto Deflorin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 09:32
CPC Classifications
C; C08; C08G; C08G18/00; C08G18/06; C08G18/28; C08G18/40; C08G18/60; C08G18/603; C08G69/00; C08G69/48; D; D06; D06M; D06M13/00; D06M15/00; D06M15/19; D06M15/37; D06M15/59; D06M15/592; F; F24; F24H; F24H1/00; F24H1/06; D06M2101/00; D06M2101/02; D06M2101/10; D06M2101/12; D06M2200/00; D06M2200/35
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) | 1975-08-01 | 1976-01-31 | 1976-08-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-08-01 | 1980-01-31 | 1980-08-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-08-01 | 1984-01-31 | 1984-08-01 | $7700.00 | Window Closed / Lapsed |