US3592581A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dyeing of human hair with insoluble phthalocyanine dyestuffs in a cationic dispersion
Assignee: Coty US LLC
•
Filing: 1968-08-08
•
Granted: 1971-07-13
•
Expires: 1988-08-08
Abstract
Abstract A SYSTEM FOR SEMI-PERMANENTLY DYEING HUMAN HAIR BY PLATING OUT A WATER INSOLUBLE PHTHALOCYANINE DYESTUFF ONTO A CATIONIC LAYER ENSHEATHING HAIR STRANDS AND ACTING AS A DYE COUPLER FOR THE DYESTUFF. THE CATIONIC LAYER IS APPLIED TO THE HAIR STRANDS FROM AN AQUEOUS MEDIUM IN WHICH THE CATIONIC MATERIAL AND WATER INSOLUBLE PHTHALOCYANINE DYESTUFF CONSTITUTE A SINGLE COMPOSITE MIXTURE WITH THE CATIONIC COMPOUND AS AN INGREDIENT IN INTIMATE CONTACT WITH THE DYESTUFF AND ACTING AS A DISPERSANT SO AS TO OBTAIN UNIFORM DISTRIBUTION OF THE DYESTUFF IN THE AQUEOUS MEDIUM AND LEVELING OF THE DYESTUFF AS A WATERFAST DYE ON THE HAIR SUBSTRATE.
Inventors
- 👤 Albert Shansky
- 👤 Alan Gary Schuster
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 09:38
CPC Classifications
A; A61; A61Q; A61Q5/00; A61Q5/06; A61Q5/065; A61K; A61K8/00; A61K8/18; A61K8/19; A61K8/30; A61K8/49; A61K8/494; C; C09; C09B; C09B47/00; C09B47/04; C09B47/08; C09B47/24; C09B47/26; C09B67/00; C09B67/006; C09B67/0066; C09B67/0067; A61K2800/00; A61K2800/40; A61K2800/58; Y; Y10; Y10S; Y10S8/00; Y10S8/906
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-07-12 | 1975-01-11 | 1975-07-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-07-12 | 1979-01-11 | 1979-07-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-07-12 | 1983-01-11 | 1983-07-13 | $7700.00 | Window Closed / Lapsed |