US2769748A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thickened hair dyeing composition comprising polyhydroxyl compound and alkanolamine
Assignee: Lever Brothers Co
•
Filing: 1952-02-25
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Granted: 1956-11-06
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Expires: 1972-02-25
Abstract
No abstract record available.
Inventors
- 👤 Eckardt Wolfgang Max Josef
- 👤 Preisinger Siegfried Roland
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 01:33
CPC Classifications
A; A61; A61Q; A61Q5/00; A61Q5/10; A61K; A61K8/00; A61K8/18; A61K8/30; A61K8/33; A61K8/34; A61K8/345; A61K8/40; A61K8/41; A61K8/411
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
122 words
A HAIR DYEING COMPOSITION COMPRISING AN AMOUNT UP TO ABOUT 5% OF AN OXIDATAION HAIR DYE; AN ALCOHOLIC, NON-DYEING ABSORPTION- AND DYE-PROMOTING POLYLHDROXYL COMPOUND CONTAINING FROM ABOUT 2 TO ABOUT 12 CARBON ATOMS AND FROM ABOUT 2 TO ABOUT 12 HYDROXYL GROUPS IN AN AMOUNT WITHIN THE RANGE FROM ABOUT 2% TO ABOUT 6%; A DYE-EQUALIZING ALKANOLAMINE HAVING AT LEAST ONE ALKYLOL CHAIN OF LOW MOLECULAR WEIGHT UP TO ABOUT 12 CARBON ATOMS AND FROM 6 TO 9 HYDROXYL GROUPS IN AN AMOUNT WITHIN THE RANGE FROM ABOUT 3% TO ABOUT 15% AND A COMPOUND CAPABLE OF SUPPLYING AMMONIUM IONS IN AN AMOUNT WITHIN THE RANGE FROM ABOUT 3% TO ABOUT 5%; THE SAID COMPOSITION HAVING A PH FROM 7 TO 9.
Claim 2
Dependent Claim
122 words
A HAIR DYEING COMPOSITION COMPRISING AN AMOUNT UP TO ABOUT 5% OF AN OXIDATAION HAIR DYE; AN ALCOHOLIC, NON-DYEING ABSORPTION- AND DYE-PROMOTING POLYLHDROXYL COMPOUND CONTAINING FROM ABOUT 2 TO ABOUT 12 CARBON ATOMS AND FROM ABOUT 2 TO ABOUT 12 HYDROXYL GROUPS IN AN AMOUNT WITHIN THE RANGE FROM ABOUT 2% TO ABOUT 6%; A DYE-EQUALIZING ALKANOLAMINE HAVING AT LEAST ONE ALKYLOL CHAIN OF LOW MOLECULAR WEIGHT UP TO ABOUT 12 CARBON ATOMS AND FROM 6 TO 9 HYDROXYL GROUPS IN AN AMOUNT WITHIN THE RANGE FROM ABOUT 3% TO ABOUT 15% AND A COMPOUND CAPABLE OF SUPPLYING AMMONIUM IONS IN AN AMOUNT WITHIN THE RANGE FROM ABOUT 3% TO ABOUT 5%; THE SAID COMPOSITION HAVING A PH FROM 7 TO 9.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-11-06 | 1960-05-07 | 1960-11-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-11-06 | 1964-05-07 | 1964-11-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-11-06 | 1968-05-07 | 1968-11-06 | $7700.00 | Window Closed / Lapsed |