US3482923A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dyeing of human hair with cationic direct dyes
Assignee: Therachemie Chemische Therapeutische GmbH
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Filing: 1965-08-25
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Granted: 1969-12-09
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Expires: 1985-08-25
Abstract
No abstract record available.
Inventors
- 👤 Karl-Josef Boosen
- 👤 Peter Berth
- 👤 Gunter Reese
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 07:55
CPC Classifications
A; A61; A61K; A61K8/00; A61K8/18; A61K8/30; A61K8/40; A61K8/41; A61K8/418; A61K8/33; A61K8/34; A61K8/345; A61K8/35; A61K8/37; A61K8/44; A61K8/49; A61K8/4906; A61K8/4926; A61K8/60; A61Q; A61Q5/00; A61Q5/06; A61Q5/065
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2069215A
Cited
US2585610A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-12-08 | 1973-06-09 | 1973-12-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-12-08 | 1977-06-09 | 1977-12-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-12-08 | 1981-06-09 | 1981-12-09 | $7700.00 | Window Closed / Lapsed |