US2861005A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Phthalocyanine pigments
Assignee: EIDP Inc
•
Filing: 1953-11-12
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Granted: 1958-11-18
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Expires: 1973-11-12
Abstract
No abstract record available.
Inventors
- 👤 Siegel Alfred
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:24
CPC Classifications
C; C09; C09B; C09B47/00; C09B47/04; C09B47/06; C09B47/065; C09B47/061; C09B67/00; C09B67/0033; C09B67/0034; C09B67/0035
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
53 words
A PHTHALOCYANINE PIGMENT HIGHLY RESISTANT TO FLOCCULATION IN AN ORGANIC COATING VEHICLE CONSISTING ESSENTIALLY OF A MIXTURE OF A MAJOR AMOUNT OF A COPPER PHTHALOCYANINE PIGMENT SUBJECT TO SAID FLOCCULATION AND A MINOR AMOUNT SUFFICIENT TO IMPART FLOCCULATION RESISTANCE TO SAID PIGMENT OF A SUBSTITUTED COPPER PHTHALOCYANINE IN WHICH THE SUBSTITUENT IS SULFONAMIDE
Claim 2
Dependent Claim
53 words
A PHTHALOCYANINE PIGMENT HIGHLY RESISTANT TO FLOCCULATION IN AN ORGANIC COATING VEHICLE CONSISTING ESSENTIALLY OF A MIXTURE OF A MAJOR AMOUNT OF A COPPER PHTHALOCYANINE PIGMENT SUBJECT TO SAID FLOCCULATION AND A MINOR AMOUNT SUFFICIENT TO IMPART FLOCCULATION RESISTANCE TO SAID PIGMENT OF A SUBSTITUTED COPPER PHTHALOCYANINE IN WHICH THE SUBSTITUENT IS SULFONAMIDE
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) | 1961-11-17 | 1962-05-19 | 1962-11-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-11-17 | 1966-05-19 | 1966-11-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-11-17 | 1970-05-19 | 1970-11-18 | $7700.00 | Window Closed / Lapsed |