US3090780A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Disazo dyes
Assignee: Aziende Colori Nazionali Affini ACNA SpA
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Filing: 1960-04-14
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Granted: 1963-05-21
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Expires: 1980-04-14
Abstract
No abstract record available.
Inventors
- 👤 Gaetani Ermanno
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 13:14
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/16; C08K5/22; C08K5/23; C08K5/235; C09; C09B; C09B31/00; C09B31/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
26 words
A DISAZO DYE, INSOLUBLE IN WATER, SELECTED FROM THE GROUP CONSISTING OF DYES OF THE FORMULAE: 1-(H3C-),5-(HO-),7-(F3C-(1,3-PHENYLENE)-N=N-(2-(H3C-)1,4-PHENYLENE)-N=N-) -NAPHTHALENE 1-(F3C-(1,3-PHENYLENE)-N=N-(2-(H3C-)-1,4-PHENYLENE)-N=N-), 2-(HO-)-NAPHTHALENE 1-(F3C-(1,3-PHENYLENE)-N=N-(2-(H3C-)-1,4-PHENYLENE)-N=N-), 4-(HO-)-NAPHTHALENE 1-(HO-),2-(F3C-(1,3-PHENYLENE)-N=N-(2-(H3C-)-1,4PHENYLENE)-N=N-),4-(H3C-) -NAPHTHALENE F3C-(1,3-PHENYLENE)-N=N-(2-(H3C-)-1,4-PHENYLENE)-N=N(2-(HO-)-1,4-PHENYLENE) -N(-C2H5)2
Claim 2
Dependent Claim
26 words
A DISAZO DYE, INSOLUBLE IN WATER, SELECTED FROM THE GROUP CONSISTING OF DYES OF THE FORMULAE: 1-(H3C-),5-(HO-),7-(F3C-(1,3-PHENYLENE)-N=N-(2-(H3C-)1,4-PHENYLENE)-N=N-) -NAPHTHALENE 1-(F3C-(1,3-PHENYLENE)-N=N-(2-(H3C-)-1,4-PHENYLENE)-N=N-), 2-(HO-)-NAPHTHALENE 1-(F3C-(1,3-PHENYLENE)-N=N-(2-(H3C-)-1,4-PHENYLENE)-N=N-), 4-(HO-)-NAPHTHALENE 1-(HO-),2-(F3C-(1,3-PHENYLENE)-N=N-(2-(H3C-)-1,4PHENYLENE)-N=N-),4-(H3C-) -NAPHTHALENE F3C-(1,3-PHENYLENE)-N=N-(2-(H3C-)-1,4-PHENYLENE)-N=N(2-(HO-)-1,4-PHENYLENE) -N(-C2H5)2
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-05-20 | 1966-11-19 | 1967-05-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-05-20 | 1970-11-19 | 1971-05-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-05-20 | 1974-11-19 | 1975-05-21 | $7700.00 | Window Closed / Lapsed |