US2823205A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oil and spirit-soluble derivatives of phthalocyanines
Assignee: Wyeth Holdings LLC
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Filing: 1953-05-04
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Granted: 1958-02-11
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Expires: 1973-05-04
Abstract
No abstract record available.
Inventors
- 👤 Harold T Lacey
- 👤 George R Waitkins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 20:28
CPC Classifications
C; C09; C09B; C09B69/00; C09B69/02; C09B69/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
131 words
COLORING MATTERS OF THE PHTHALOCVAININE SERIES BEING THE SALT FORMED FROM AN ION SELECTED FROM THE GROUP CONSISTING OF THE ANIONS OF UNMETALLIZED AND METALLIZED PHTHALOCYANINES HAVING ONE ATOM OF A METAL HAVING A COORDINATION NUMBER OF 4 TO 6 IN THE CENTER OF THE MOLECULE AND, AS SUBSTITUTES, A TOTAL OF NOT EXCEEDING 8 FROM THE GROUP CONSISTING OF HALOGEN GROUPS, SULFONIC ACID GROUPS, AND ORTHOCARBOXYBENZAMIDOMETHYL GROUPS, AT LEAST ONE SUCH ORTHOCARBOXYBENZIAMIDOMETHYL GROUP BEING PRESENT, AND A QUATERNARY AMMONIUM ION SELECTED FROM THE GROUP CONSISTING OF ALKYL PYDIDINIUM IONS, DIALKYL MORRPHOLINIUM IONS AND QUATERNARY NITROGEN IONS IN WHICH THE FOUR SUBSTITUENTS ARE SELECTED FROM THE GROUP CONSISTING OF PHENYL, NAPHTHYL, DIPHENYL, ALKYL GROUPS HAVING NOT MORE THAN 18 CARBON ATOMS, UNSATURATED HYDROCARBON GROUPS, ACYLAMIDOALKYL GROUPS, ARALKYL, ALKARYL AND HYDROXY ALKYL.
Claim 2
Dependent Claim
131 words
COLORING MATTERS OF THE PHTHALOCVAININE SERIES BEING THE SALT FORMED FROM AN ION SELECTED FROM THE GROUP CONSISTING OF THE ANIONS OF UNMETALLIZED AND METALLIZED PHTHALOCYANINES HAVING ONE ATOM OF A METAL HAVING A COORDINATION NUMBER OF 4 TO 6 IN THE CENTER OF THE MOLECULE AND, AS SUBSTITUTES, A TOTAL OF NOT EXCEEDING 8 FROM THE GROUP CONSISTING OF HALOGEN GROUPS, SULFONIC ACID GROUPS, AND ORTHOCARBOXYBENZAMIDOMETHYL GROUPS, AT LEAST ONE SUCH ORTHOCARBOXYBENZIAMIDOMETHYL GROUP BEING PRESENT, AND A QUATERNARY AMMONIUM ION SELECTED FROM THE GROUP CONSISTING OF ALKYL PYDIDINIUM IONS, DIALKYL MORRPHOLINIUM IONS AND QUATERNARY NITROGEN IONS IN WHICH THE FOUR SUBSTITUENTS ARE SELECTED FROM THE GROUP CONSISTING OF PHENYL, NAPHTHYL, DIPHENYL, ALKYL GROUPS HAVING NOT MORE THAN 18 CARBON ATOMS, UNSATURATED HYDROCARBON GROUPS, ACYLAMIDOALKYL GROUPS, ARALKYL, ALKARYL AND HYDROXY ALKYL.
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) | 1961-02-10 | 1961-08-12 | 1962-02-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-02-10 | 1965-08-12 | 1966-02-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-02-10 | 1969-08-12 | 1970-02-11 | $7700.00 | Window Closed / Lapsed |