Patent US3352755A successfully refreshed from Google Patents.
US3352755A
Expired / Lapsed
US
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Acid dye composition for human hair
Assignee: Gillette Co LLC
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Filing: 1961-08-04
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Granted: 1967-11-14
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Expires: 1981-08-04
Abstract
No abstract record available.
Inventors
- 👤 Louis L Lerner
- 👤 Helen E Oberstar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 20:17
CPC Classifications
A; A61; A61Q; A61Q5/00; A61Q5/08; A61K; A61K8/00; A61K8/18; A61K8/19; A61K8/23; A61K8/30; A61K8/33; A61K8/34; A61Q5/06; A61Q5/065; A61Q5/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
117 words
A HAIR DYE COMPOSITION CONSISTING ESSENTIALLY OF AN ACID DYE, A WATER SOLUBLE SALT SELECTED FROM THE CLASS CONSISTING OF THE CHLORIDES, BROMIDES, SULFATES, ACETATES, BORATES, NITRATES, CITRATES, LACTATES, BROMATES, AND CHLORATES OF ALKALI METALS, ALKALINE EARTH METALS, AMMONIA, LOWER ALKYLAMINES CONTAINING FROM 1 TO 4 CARBON ATOMS, AND MONO-, DI-, AND TRI-ALKANOLAMINES IN WHICH EACH ALKANOL GROUP CONTAINS FROM 2 TO 3 CARBON ATOMS, SAID SALT BEING CHEMICALLY INERT TO THE HAIR AND TO THE REMAINING INGREDIENTS OF THE COMPOSITION, THE RATIO OF DYE TO SALT BEING FROM 1:1 TO 1:2000 BY WEIGHT, AND A FREE BASE IN AN AMOUNT SUFFICIENT TO PRODUCE A PH OF 8.5 TO 12.5 IN AN AQUEOUS SOLUTION CONTAINING THE COMPOSITION.
Claim 2
Dependent Claim
117 words
A HAIR DYE COMPOSITION CONSISTING ESSENTIALLY OF AN ACID DYE, A WATER SOLUBLE SALT SELECTED FROM THE CLASS CONSISTING OF THE CHLORIDES, BROMIDES, SULFATES, ACETATES, BORATES, NITRATES, CITRATES, LACTATES, BROMATES, AND CHLORATES OF ALKALI METALS, ALKALINE EARTH METALS, AMMONIA, LOWER ALKYLAMINES CONTAINING FROM 1 TO 4 CARBON ATOMS, AND MONO-, DI-, AND TRI-ALKANOLAMINES IN WHICH EACH ALKANOL GROUP CONTAINS FROM 2 TO 3 CARBON ATOMS, SAID SALT BEING CHEMICALLY INERT TO THE HAIR AND TO THE REMAINING INGREDIENTS OF THE COMPOSITION, THE RATIO OF DYE TO SALT BEING FROM 1:1 TO 1:2000 BY WEIGHT, AND A FREE BASE IN AN AMOUNT SUFFICIENT TO PRODUCE A PH OF 8.5 TO 12.5 IN AN AQUEOUS SOLUTION CONTAINING THE COMPOSITION.
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) | 1970-11-13 | 1971-05-15 | 1971-11-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-11-13 | 1975-05-15 | 1975-11-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-11-13 | 1979-05-15 | 1979-11-14 | $7700.00 | Window Closed / Lapsed |