US3600374A
Expired / Lapsed
US
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Phenyl-azo-naphthoic acid amide pigments containing a naphthostyril group
Assignee: BASF Schweiz AG
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Filing: 1968-03-01
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Granted: 1971-08-17
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Expires: 1988-03-01
Abstract
Abstract MONOAZO DYESTUFFS OF THE FORMULA 1-R1-N=N-,2-HO-,3-R2-NH-CO-,6-Y-NAPHTHALENE IN WHICH Y REPRESENTS A HYDROGEN OR A HALOGEN ATOM OR AN ALKOXY OR CYANO GROUP, R2 REPRESENTS A NAPHTHOSTYRIL RADICAL AND R1 REPRESENTS A BENZENE RADICAL ARE VALUABLE PIGMENTS WHICH COLOR PLASTIC MASSES RED SHADES OF EXCELLENT FASTNESS TO LIGHT AND MIGRATION.
Inventors
- 👤 Rudolf Mory
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 08:31
CPC Classifications
C; C09; C09B; C09B43/00; C09B43/32
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) | 1974-08-16 | 1975-02-15 | 1975-08-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-08-16 | 1979-02-15 | 1979-08-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-08-16 | 1983-02-15 | 1983-08-17 | $7700.00 | Window Closed / Lapsed |