US2494810A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pigment emulsions and the manufacture thereof
Assignee: Geigy Co Ltd
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Filing: 1946-07-15
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Granted: 1950-01-17
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Expires: 1966-07-15
Abstract
No abstract record available.
Inventors
- 👤 Hobday Cyril
- 👤 Goodall Frederic Leathley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:43
CPC Classifications
D; D06; D06P; D06P1/00; D06P1/44; C; C09; C09D; C09D167/00; C09D167/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
67 words
THE METHOD OF MAKING A PIGMENT EMULSION WHICH COMPRISES DISPERSING A PIGMENT IN AN AQUEOUS MEDIUM WITH THE AID OF A DISPERSING AGENT COMPRISING A NON-CONVERTIBLE ALKYD RESIN AND A BASIC SUBSTANCE SELECTED FROM THE GROUP WHICH CONSISTS OF AMMONIA AND ALKYLOLAMINES AND FURTHER DISPERSING IN SAID AQUEOUS MEDIUM A SOLUTION OF A THERMOHARDENING SYNTHETIC RESIN IN AN ORGANIC LIQUID WHICH IS SUBSTANTIALLY NON-SOLVENT FOR SAID PIGMENT.
Claim 2
Independent Claim
67 words
THE METHOD OF MAKING A PIGMENT EMULSION WHICH COMPRISES DISPERSING A PIGMENT IN AN AQUEOUS MEDIUM WITH THE AID OF A DISPERSING AGENT COMPRISING A NON-CONVERTIBLE ALKYD RESIN AND A BASIC SUBSTANCE SELECTED FROM THE GROUP WHICH CONSISTS OF AMMONIA AND ALKYLOLAMINES AND FURTHER DISPERSING IN SAID AQUEOUS MEDIUM A SOLUTION OF A THERMOHARDENING SYNTHETIC RESIN IN AN ORGANIC LIQUID WHICH IS SUBSTANTIALLY NON-SOLVENT FOR SAID PIGMENT.
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) | 1953-01-16 | 1953-07-18 | 1954-01-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-01-16 | 1957-07-18 | 1958-01-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-01-16 | 1961-07-18 | 1962-01-17 | $7700.00 | Window Closed / Lapsed |