Patent US2662085A successfully refreshed from Google Patents.
US2662085A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for preparation of chlorinated copper phthalocyanine
Assignee: Ansbacher-Siegle Corp
•
Filing: 1950-06-29
•
Granted: 1953-12-08
•
Expires: 1970-06-29
Abstract
No abstract record available.
Inventors
- 👤 Holtzman Harris
- 👤 Simon Eric
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 06:14
CPC Classifications
C; C09; C09B; C09B47/00; C09B47/04; C09B47/08; C09B47/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
48 words
IN A PROCESS FOR CHLORINATING COPPER PHTHALOCYANINE, THE IMPORVEMENT OF PERFORMING THE REACTION BY BUILDING CHLORINE THROUGH SAID COPPER PHTHALOCYANINE WHEN DISSOLVED IN CHLORSULPHONIC ACID IN THE PRESENCE OF A CHLORINATION CATALYST AND MAINTAINING THE TEMPERATURE OF SAID SOLUTION DURING THE ADDITION OF SAID CHLORINE BELOW 115* C.
Claim 2
Dependent Claim
48 words
IN A PROCESS FOR CHLORINATING COPPER PHTHALOCYANINE, THE IMPORVEMENT OF PERFORMING THE REACTION BY BUILDING CHLORINE THROUGH SAID COPPER PHTHALOCYANINE WHEN DISSOLVED IN CHLORSULPHONIC ACID IN THE PRESENCE OF A CHLORINATION CATALYST AND MAINTAINING THE TEMPERATURE OF SAID SOLUTION DURING THE ADDITION OF SAID CHLORINE BELOW 115* C.
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) | 1956-12-07 | 1957-06-08 | 1957-12-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-12-07 | 1961-06-08 | 1961-12-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-12-07 | 1965-06-08 | 1965-12-08 | $7700.00 | Window Closed / Lapsed |