US3235526A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dispersing organic pigments in an aqueous medium
Assignee: Monsanto Co
•
Filing: 1962-09-21
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Granted: 1966-02-15
•
Expires: 1982-09-21
Abstract
No abstract record available.
Inventors
- 👤 Charles R Williams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 11:14
CPC Classifications
C; C09; C09B; C09B67/00; C09B67/0071; C09B67/0084; C09B67/0085; C09B67/0086; Y; Y10; Y10S; Y10S516/00; Y10S516/01; Y10S516/06; Y10S516/07
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
70 words
IN A PROCESS FOR PREPARING DISPERSIONS OF WATER-INSOLUBLE ORGANIC PIGMENTS IN AN AQUEOUS MEDIUM; THE IMPROVEMENT WHICH COMPRISES INCORPORATING IN THE AQUEOUS MEDIUM A SALT OF SUBSTITUTED AMIDE OF AN OLEFINMALEIC ANHYDRIDE COPOLYMER IN THE AMOUNT OF 0.1-7.0 WEIGHT PERCENT BASED ON THE WEIGHT OF THE ORGANIC PIGMENT DISPERSED THEREIN; SAID SALT OF THE SUBSTITUTED AMIDE OF AN OLEFIN-MALEIC ANHYDRIDE COPOLYMER HAVING IN ITS STRUCTURE RECURRING GROUPS OF THE FORMULAE:
Claim 2
Dependent Claim
70 words
IN A PROCESS FOR PREPARING DISPERSIONS OF WATER-INSOLUBLE ORGANIC PIGMENTS IN AN AQUEOUS MEDIUM; THE IMPROVEMENT WHICH COMPRISES INCORPORATING IN THE AQUEOUS MEDIUM A SALT OF SUBSTITUTED AMIDE OF AN OLEFINMALEIC ANHYDRIDE COPOLYMER IN THE AMOUNT OF 0.1-7.0 WEIGHT PERCENT BASED ON THE WEIGHT OF THE ORGANIC PIGMENT DISPERSED THEREIN; SAID SALT OF THE SUBSTITUTED AMIDE OF AN OLEFIN-MALEIC ANHYDRIDE COPOLYMER HAVING IN ITS STRUCTURE RECURRING GROUPS OF THE FORMULAE:
References Cited (Backward Citations)
US3000840A
Cited
US2930775A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-02-14 | 1969-08-16 | 1970-02-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-14 | 1973-08-16 | 1974-02-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-14 | 1977-08-16 | 1978-02-15 | $7700.00 | Window Closed / Lapsed |