US3580900A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Water-soluble quaternary amine containing monoazo dyestuffs
Assignee: Hoechst AG
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Filing: 1968-10-01
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Granted: 1971-05-25
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Expires: 1988-10-01
Abstract
Abstract WATER-SOLUBLE BASIC MONOAZO DYESTUFFS WHICH ARE SUITABLE FOR THE DYEING OR PRINTING OF TEXTILE FIBROUS MATERIALS CONSISTING OF NATIVE OR REGENERATIVE CELLULLSE, POLYAMIDES, POLYESTERS, POLYACRYLONITRILE OR POLYVINYLIDENE CYANIDE.
Inventors
- 👤 Eberhard Mundlos
- 👤 Reinhard Mohr
- 👤 Gunther Trapp
- 👤 Kurt Hohmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 07:29
CPC Classifications
C; C09; C09B; C09B44/00; C09B44/02; C09B44/04; Y; Y10; Y10S; Y10S8/00; Y10S8/92; Y10S8/927
Claims Analysis
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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) | 1974-05-24 | 1974-11-23 | 1975-05-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-05-24 | 1978-11-23 | 1979-05-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-05-24 | 1982-11-23 | 1983-05-25 | $7700.00 | Window Closed / Lapsed |