US3651931A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dispensing package for two-part hair-treating compositions
Assignee: Gillette Co LLC
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Filing: 1969-10-28
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Granted: 1972-03-28
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Expires: 1989-10-28
Abstract
Abstract A package containing a two-part hair or skin treating composition, the parts of which are intended to be mixed immediately before or during dispensing from the package, one part containing hydrogen peroxide and a buffer providing a pH from 2.5 to 6.5, the other part containing alkaline material, the relative amount of acid buffer and alkaline material being such that the pH of the final composition is from 7 to 12 immediately after mixing.
Inventors
- 👤 Du Yung Hsiung
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 23:26
CPC Classifications
B; B65; B65D; B65D83/00; B65D83/14; B65D83/68; B65D83/682; A; A61; A61K; A61K8/00; A61K8/18; A61K8/30; A61K8/33; A61K8/36; A61K8/368; A61Q; A61Q5/00; A61Q5/08; A61Q5/10; A61K2800/00; A61K2800/40; A61K2800/52; A61K2800/80; A61K2800/88
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
18 words
A dispensing package as claimed in claim 1 in which the package contains in addition a pressure propellant.
Claim 2
Dependent Claim
22 words
A dispensing package as claimed in claim 1 in which the two compartments are separated by a permeable wall of synthetic polymer.
Claim 3
Dependent Claim
15 words
A dispensing package as claimed in claim in which the buffer is potassium acid phthalate.
Claim 4
Dependent Claim
20 words
A dispensing package as claimed in claim 2 in which the hair treating composition is an oxidative hair dye composition.
Claim 5
Dependent Claim
16 words
A dispensing package as claimed in claim 5 in which the buffer is potassium acid phthalate.
Claim 6
Dependent Claim
19 words
A dispensing package as claimed in claim 2 in which the hair treating composition is a hair bleach composition.
Claim 7
Dependent Claim
16 words
A dispensing package as claimed in claim 7 in which the buffer is potassium acid phthalate.
References Cited (Backward Citations)
US3193464A
Cited
US3241722A
Cited
US3341418A
Cited
US3339802A
Cited
GB1125528A
Cited
US3415608A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-03-28 | 1975-09-27 | 1976-03-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-03-28 | 1979-09-27 | 1980-03-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-03-28 | 1983-09-27 | 1984-03-28 | $7700.00 | Window Closed / Lapsed |