Patent US2526379A successfully refreshed from Google Patents.
US2550211A
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Aqueous emulsion and a process of making it
Assignee: Imperial Chemical Industries Ltd
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Filing: 1948-01-12
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Granted: 1951-04-24
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Expires: 1968-01-12
Abstract
No abstract record available.
Inventors
- 👤 Andrew J Watters
- 👤 David M Shepherd
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 21:11
CPC Classifications
A; A23; A23D; A23D7/00; A23D7/003; C; C09; C09K; C09K23/00; C09K23/017; C09K23/018
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
83 words
AN AQUEOUS EMULSION WHEREIN THE AQUEOUS PHASE CONSTITUTES THE DISPERSION MEDIUM AND THE DISPERSED PHASE IS COMPRISED OF A WATER-INSOLUBLE LONG CHAIN ALIPHATIC SUBSTANCE SELECTED FROM THE GROUP CONSISTING OF OILS, FATS AND WAXES, THE EMULSION CONTAINING A MINOR PROPORTION OF A WATER-SOLUBLE METHYL ETHER OF CELLULOSE IN A CONCENTRATION INSUFFICIENT BY ITSELF TO GIVE EFFECTIVE EMULSIFICATION OF SAID WATER-INSOLUBLE SUBSTANCE AND A MAJOR PROPORTION OF A WATER-SOLUBLE ALKALI METAL SALT OF CARBOXY-METHYL CELLULOSE HAVING SUBSTANTIALLY HIGHER VISCOSITY CHARACTERISTICS THAN SAID METHYL ETHER.
Claim 2
Dependent Claim
83 words
AN AQUEOUS EMULSION WHEREIN THE AQUEOUS PHASE CONSTITUTES THE DISPERSION MEDIUM AND THE DISPERSED PHASE IS COMPRISED OF A WATER-INSOLUBLE LONG CHAIN ALIPHATIC SUBSTANCE SELECTED FROM THE GROUP CONSISTING OF OILS, FATS AND WAXES, THE EMULSION CONTAINING A MINOR PROPORTION OF A WATER-SOLUBLE METHYL ETHER OF CELLULOSE IN A CONCENTRATION INSUFFICIENT BY ITSELF TO GIVE EFFECTIVE EMULSIFICATION OF SAID WATER-INSOLUBLE SUBSTANCE AND A MAJOR PROPORTION OF A WATER-SOLUBLE ALKALI METAL SALT OF CARBOXY-METHYL CELLULOSE HAVING SUBSTANTIALLY HIGHER VISCOSITY CHARACTERISTICS THAN SAID METHYL ETHER.
References Cited (Backward Citations)
US1970572A
Cited
GB328934A
Cited
GB330897A
Cited
GB351444A
Cited
US2111402A
Cited
US2245499A
Cited
US2340072A
Cited
US2372756A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-04-23 | 1954-10-23 | 1955-04-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-04-23 | 1958-10-23 | 1959-04-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-04-23 | 1962-10-23 | 1963-04-24 | $7700.00 | Window Closed / Lapsed |