US2816045A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Phthalocyanine pigments
Assignee: EIDP Inc
•
Filing: 1953-08-31
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Granted: 1957-12-10
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Expires: 1973-08-31
Abstract
No abstract record available.
Inventors
- 👤 Joseph H Cooper
- 👤 Arthur J Stratton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 10:59
CPC Classifications
C; C09; C09B; C09B47/00; C09B47/04; C09B47/06; C09B47/065; C09B67/00; C09B67/0033; C09B67/0034; C09B67/0035
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
62 words
A PHTHALOCYANNE PIGGMENT HIGHLY RESISTANT TO FLOCCULATION IN A LYOPHILIC ORGANIC COATING VECHICLE CONSISTING ESSENTIALLY OF A MAJOR AMOUNT OF AN UNSULFONATED COPPER PHTHALOCYANINE PIGMENT SUBJECT TO SAID FLOCCULATION AND FROM 2-15% BY WEIGHT OF AN INSOLUBLE METAL SALT OF COPPER PHTHALOCYANINE POLYSULFONIC ACID, SAID METAL BEING SELECTED FROM THE GROUP CONSISTING OF BARIUM, MAGNESIUM, CADMIUM, MANGANESE, ZIRCONIUM, ZINC, ALUMINUM, AND TIN.
Claim 2
Dependent Claim
62 words
A PHTHALOCYANNE PIGGMENT HIGHLY RESISTANT TO FLOCCULATION IN A LYOPHILIC ORGANIC COATING VECHICLE CONSISTING ESSENTIALLY OF A MAJOR AMOUNT OF AN UNSULFONATED COPPER PHTHALOCYANINE PIGMENT SUBJECT TO SAID FLOCCULATION AND FROM 2-15% BY WEIGHT OF AN INSOLUBLE METAL SALT OF COPPER PHTHALOCYANINE POLYSULFONIC ACID, SAID METAL BEING SELECTED FROM THE GROUP CONSISTING OF BARIUM, MAGNESIUM, CADMIUM, MANGANESE, ZIRCONIUM, ZINC, ALUMINUM, AND TIN.
References Cited (Backward Citations)
US2526345A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-12-09 | 1961-06-10 | 1961-12-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-12-09 | 1965-06-10 | 1965-12-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-12-09 | 1969-06-10 | 1969-12-10 | $7700.00 | Window Closed / Lapsed |