US2586598A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for chlorinating phthalocyanine coloring matters
Assignee: EIDP Inc
•
Filing: 1949-04-30
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Granted: 1952-02-19
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Expires: 1969-04-30
Abstract
No abstract record available.
Inventors
- 👤 Barnhart George
- 👤 Grimble Robert Warren
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 05:56
CPC Classifications
C; C09; C09B; C09B47/00; C09B47/04; C09B47/08; C09B47/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
55 words
THE PROCESS OF PRODUCING A HIGHLY CHLORINATED PHTHALOCYANINE COMPOUND, WHICH COMPRISES TREATING A PHTHALOCYANINE COMPOUND OF LOWER CHLORINE CONTENT THAN THE HIGHLY CHLORINATED STATE DESIRED AND WHILE SAID COMPOUND IS IN POWDERED STATE AND COATED ON THE SURFACE OF A GRANULAR SOLID, INERT DILUENT, WITH A VERTICAL STREAM OF A GAS COMPRISING GASEOUS CHLORINE, SAID
Claim 2
Dependent Claim
55 words
THE PROCESS OF PRODUCING A HIGHLY CHLORINATED PHTHALOCYANINE COMPOUND, WHICH COMPRISES TREATING A PHTHALOCYANINE COMPOUND OF LOWER CHLORINE CONTENT THAN THE HIGHLY CHLORINATED STATE DESIRED AND WHILE SAID COMPOUND IS IN POWDERED STATE AND COATED ON THE SURFACE OF A GRANULAR SOLID, INERT DILUENT, WITH A VERTICAL STREAM OF A GAS COMPRISING GASEOUS CHLORINE, SAID
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) | 1955-02-18 | 1955-08-20 | 1956-02-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-02-18 | 1959-08-20 | 1960-02-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-02-18 | 1963-08-20 | 1964-02-19 | $7700.00 | Window Closed / Lapsed |