US3697215A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dyeing hair with n-(ureidoalkyl)- and n-(thioureidoalkyl) - para - phenylene diamines
Assignee: L'Oréal SA
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Filing: 1969-09-02
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Granted: 1972-10-10
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Expires: 1989-09-02
Abstract
Abstract DYE COMPOSITIONS CONTAINING THE OXIDATION DYE: 2-R1,4-(H2N-C(=Z)-NH-(CH2)N-NH-),5-R2-ANILINE AND THE METHOD OF USING IT TO DYE LIVE HUMAN HAIR.
Inventors
- 👤 Gregoire Kalopissis
- 👤 Jean Gascon
- 👤 Andree Bugaut
- 👤 Jacqueline Gallien
- 👤 Hubert Gaston-Breton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 19:14
CPC Classifications
A; A61; A61K; A61K8/00; A61K8/18; A61K8/30; A61K8/40; A61K8/42; A61Q; A61Q5/00; A61Q5/10; C; C07; C07C; C07C275/00; C07C275/04; C07C275/06; C07C275/14
Claims Analysis
Total Claims: 0
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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) | 1975-10-10 | 1976-04-10 | 1976-10-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-10-10 | 1980-04-10 | 1980-10-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-10-10 | 1984-04-10 | 1984-10-10 | $7700.00 | Window Closed / Lapsed |