US3006922A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of highly chlorinated phthalocyanines easily dispersible in spinning melts
Assignee: Sandoz AG
•
Filing: 1959-07-20
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Granted: 1961-10-31
•
Expires: 1979-07-20
Abstract
No abstract record available.
Inventors
- 👤 Geiger Georg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 15:03
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/0091; C09; C09B; C09B67/00; C09B67/0032; C08K5/0008; C08K5/0041; C09B67/0001; C09B67/0014; C09B67/0016; G; G01; G01N; G01N9/00; G01N9/002
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
50 words
A PROCESS FOR THE PREPARATION OF HIGHLY CHLORINATED COPPER PHTHALOCYANINES WHICH ARE EASILY DISPERSIBLE IN SPINNING MELTS, CONSISTING ESSENTIALLY IN HEATING FINELY DISPERSED HIGHLY CHLORINATED COPPER PHTHALOCYANINE IN AN ORGANIC SOLVENT SELECTED FROM THE GROUP CONSISTING OF DIMETHYLFORMAMIDE, TRICHLOROBENZENE, NITROBENZENE, 1-CHLORO-NAPHTHALENE AND 2-CHLORO-NAPHTHALENE, AT A TEMPERATURE OF 150*C. TO 250*C.
Claim 2
Dependent Claim
50 words
A PROCESS FOR THE PREPARATION OF HIGHLY CHLORINATED COPPER PHTHALOCYANINES WHICH ARE EASILY DISPERSIBLE IN SPINNING MELTS, CONSISTING ESSENTIALLY IN HEATING FINELY DISPERSED HIGHLY CHLORINATED COPPER PHTHALOCYANINE IN AN ORGANIC SOLVENT SELECTED FROM THE GROUP CONSISTING OF DIMETHYLFORMAMIDE, TRICHLOROBENZENE, NITROBENZENE, 1-CHLORO-NAPHTHALENE AND 2-CHLORO-NAPHTHALENE, AT A TEMPERATURE OF 150*C. TO 250*C.
References Cited (Backward Citations)
US2486351A
Cited
US2524672A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-10-30 | 1965-05-01 | 1965-10-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-10-30 | 1969-05-01 | 1969-10-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-10-30 | 1973-05-01 | 1973-10-31 | $7700.00 | Window Closed / Lapsed |