US2713005A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Phthalocyanine pigments
Assignee: Kemisk Vaerk Koge AS
•
Filing: 1951-08-28
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Granted: 1955-07-12
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Expires: 1971-08-28
Abstract
No abstract record available.
Inventors
- 👤 Baunsgaard Arne Christian
- 👤 Knudsen Borge Ingemann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 12:56
CPC Classifications
C; C09; C09B; C09B67/00; C09B67/0033; C09B67/0034; C09B67/0035; C09B67/0032
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
20 words
PHTHALOCYANINE PIGMENTS COMPRISING COPPER PHTHALOCYANINE AND FROM ABOUT 2% TO 6% BY WEIGHT OF A WATER INSOLUBLE MAGNESIUM PHTHALOCYAMINE COMPOUND.
Claim 2
Dependent Claim
20 words
PHTHALOCYANINE PIGMENTS COMPRISING COPPER PHTHALOCYANINE AND FROM ABOUT 2% TO 6% BY WEIGHT OF A WATER INSOLUBLE MAGNESIUM PHTHALOCYAMINE COMPOUND.
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) | 1958-07-11 | 1959-01-10 | 1959-07-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-07-11 | 1963-01-10 | 1963-07-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-07-11 | 1967-01-10 | 1967-07-12 | $7700.00 | Window Closed / Lapsed |