US3261754A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Solvent dyeing of human hair
Assignee: Rapidol Ltd
•
Filing: 1959-03-04
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Granted: 1966-07-19
•
Expires: 1979-03-04
Abstract
No abstract record available.
Inventors
- 👤 Peters Leo
- 👤 Stevens Cyril Beynond
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 09:21
CPC Classifications
A; A61; A61K; A61K8/00; A61K8/18; A61K8/30; A61K8/33; A61K8/34; A61K8/37; A61Q; A61Q5/00; A61Q5/06; A61Q5/065; A61K2800/00; A61K2800/40; A61K2800/42; A61K2800/43; A61K2800/432; Y; Y10; Y10S; Y10S8/00; Y10S8/916; Y10S8/917
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
42 words
A HAIR DYEING COMPOSITION COMPRISING AN AQUEOUS LIQUOR CONTAINING A DYE AND UP TO 20% BY VOLUME, BASED ON THE TOTAL VOLUME OF THE COMPOSITION, OF AN ORGANIC COMPOUND SELECTED FROM THE GROUP CONSISTING OF BENZYL ALCOHOL, AMYL ALCOHOL AND AMYL LACTATE.
Claim 2
Dependent Claim
42 words
A HAIR DYEING COMPOSITION COMPRISING AN AQUEOUS LIQUOR CONTAINING A DYE AND UP TO 20% BY VOLUME, BASED ON THE TOTAL VOLUME OF THE COMPOSITION, OF AN ORGANIC COMPOUND SELECTED FROM THE GROUP CONSISTING OF BENZYL ALCOHOL, AMYL ALCOHOL AND AMYL LACTATE.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-07-18 | 1970-01-17 | 1970-07-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-07-18 | 1974-01-17 | 1974-07-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-07-18 | 1978-01-17 | 1978-07-19 | $7700.00 | Window Closed / Lapsed |