Patent US3342798A successfully refreshed from Google Patents.
US3342798A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pyrimidyl azo dyestuffs
Assignee: Novartis AG
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Filing: 1959-05-22
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Granted: 1967-09-19
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Expires: 1979-05-22
Abstract
No abstract record available.
Inventors
- 👤 Dussy Paul
- 👤 Ammann Jurg
- 👤 Bossard Werner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 22:30
CPC Classifications
C; C09; C09B; C09B62/00; C09B62/02; C09B62/20; C09B62/24
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
166 words
WATER-SOLUBLE ORGANIC DYESTUFF CONSISTING ESSENTIALLY OF (I) FROM ONE TO TWO TRICHLOROPYRIMIDYL RESIDUES OF 2, 4, 5, 6-TETRACHLOROPYRIMIDINE, (II) A DYESTUFF GROUPING OF WHILE ONE EXCHANGEABLE HYDROGEN ATOM IS REPLACED FOR EACH TRICHLOROPYRIMIDYL RESIDUE AND (III) A DIVALENT BRIDGE MEMBER, -NH- FOR EACH TRICHLOROPYRIMIDYL RESIDUE, EACH OF SAID BRIDGE MEMBERS BEING CONNECTED WITH ONE OF ITS VALENCES TO A TRICHLOROPYRIMIDYL RESIDUE (I) IN REPLACEMENT OF ONE OF THE FOUR CHLORINE ATOMS OF THE 2, 4, 5, 6TETRACHLOROPYRIMIDINE AND WITH ITS OTHER VALENCE TO THE SITE OF A REPLACED EXCHANGEABLE HYDROGEN ATOM OF (II); THE DYESTUFF GROUPING BEING A MEMBER SELECTED FROM THE GROUP CONSISTING OF (A) AN UNMETALLIZED MONOAZO DYESTUFF GROUPING BEARING AT MOST 4 HO3S-GROUPS AND SELECTED FROM THE GROUP CONSISTING OF (1) BENZENE-AZO-NAPHTHALENE, (2) DIPHENYL-AZO-NAPHTHALENE, (3) BENZENE-AZO-5-PYRAZOLONE, (4) NAPHTHALENE-AZO-NAPHTHALENE; (5) BENZENE-AZO-BENZENE, (B) COPPER COMPLEXES OF THE UNMETALLIZED MONOAZO DYESTUFF GROUPING; (C) A DISAZO DYESTUFF GROUPING BEARING FROM 2 TO 4 HO3S-GROUPS AND SELECTED FROM THE GROUP CONSISTING OF (1) BENZENE-AZO-BENZENE-AZO-BENZENE. (2) BENZENE-AZO-BENZENE-AZO-NAPHTHALENE, (3) BENZENE-AZO-NAPHTHALENE-AZO-BENZENE.
Claim 2
Dependent Claim
166 words
WATER-SOLUBLE ORGANIC DYESTUFF CONSISTING ESSENTIALLY OF (I) FROM ONE TO TWO TRICHLOROPYRIMIDYL RESIDUES OF 2, 4, 5, 6-TETRACHLOROPYRIMIDINE, (II) A DYESTUFF GROUPING OF WHILE ONE EXCHANGEABLE HYDROGEN ATOM IS REPLACED FOR EACH TRICHLOROPYRIMIDYL RESIDUE AND (III) A DIVALENT BRIDGE MEMBER, -NH- FOR EACH TRICHLOROPYRIMIDYL RESIDUE, EACH OF SAID BRIDGE MEMBERS BEING CONNECTED WITH ONE OF ITS VALENCES TO A TRICHLOROPYRIMIDYL RESIDUE (I) IN REPLACEMENT OF ONE OF THE FOUR CHLORINE ATOMS OF THE 2, 4, 5, 6TETRACHLOROPYRIMIDINE AND WITH ITS OTHER VALENCE TO THE SITE OF A REPLACED EXCHANGEABLE HYDROGEN ATOM OF (II); THE DYESTUFF GROUPING BEING A MEMBER SELECTED FROM THE GROUP CONSISTING OF (A) AN UNMETALLIZED MONOAZO DYESTUFF GROUPING BEARING AT MOST 4 HO3S-GROUPS AND SELECTED FROM THE GROUP CONSISTING OF (1) BENZENE-AZO-NAPHTHALENE, (2) DIPHENYL-AZO-NAPHTHALENE, (3) BENZENE-AZO-5-PYRAZOLONE, (4) NAPHTHALENE-AZO-NAPHTHALENE; (5) BENZENE-AZO-BENZENE, (B) COPPER COMPLEXES OF THE UNMETALLIZED MONOAZO DYESTUFF GROUPING; (C) A DISAZO DYESTUFF GROUPING BEARING FROM 2 TO 4 HO3S-GROUPS AND SELECTED FROM THE GROUP CONSISTING OF (1) BENZENE-AZO-BENZENE-AZO-BENZENE. (2) BENZENE-AZO-BENZENE-AZO-NAPHTHALENE, (3) BENZENE-AZO-NAPHTHALENE-AZO-BENZENE.
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) | 1970-09-18 | 1971-03-20 | 1971-09-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-18 | 1975-03-20 | 1975-09-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-18 | 1979-03-20 | 1979-09-19 | $7700.00 | Window Closed / Lapsed |