US3833419A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Solution means for removing hair from hair brushes
Assignee: Individual
•
Filing: 1972-11-20
•
Granted: 1974-09-03
•
Expires: 1992-11-20
Abstract
Abstract Hair brushes are cleaned of matted hair by soaking them in a solution derived from a solid oxidizing agent, preferably one capable of providing available chlorine in defined concentrations. Hypochlorites, especially lithium hypochlorite, is preferred.
Inventors
- 👤 B Weiss
- 👤 S Brechner
- 👤 D Schoenholz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 18:07
CPC Classifications
A; A46; A46B; A46B17/00; A46B17/06; B; B08; B08B; B08B3/00; B08B3/04; B08B3/08; D; D06; D06L; D06L4/00; D06L4/20
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
20 words
The process of claim 1 wherein said solid oxidizing agent is capable of liberating available chlorine when dissolved in water.
Claim 2
Dependent Claim
25 words
The process of claim 1 wherein said solid oxidizing agent is added by the user in a pre-packaged, premeasured quantity to form said contacting solution.
Claim 3
Dependent Claim
26 words
The process of claim 1 wherein said solid oxidizing agent consists essentially of a member of the group consisting of solid alkali and alkaline earth hypochlorites.
Claim 4
Dependent Claim
13 words
The process of claim 4 wherein said solid oxidizing agent is lithium hypochlorite.
Claim 5
Dependent Claim
37 words
The process of claim 5 wherein said lithium hypochlorite is added in sufficient quantities to give 0.1 to 20 grams of available chlorine per liter of treating solution, said contact period being from 0.5 to 12 hours.
References Cited (Backward Citations)
US1522555A
Cited
US2202516A
Cited
US2738365A
Cited
US2994330A
Cited
US3129451A
Cited
US3508857A
Cited
US3645390A
Cited
US3651931A
Cited
US3697431A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-09-02 | 1978-03-04 | 1978-09-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-09-02 | 1982-03-04 | 1982-09-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-09-02 | 1986-03-04 | 1986-09-03 | $7700.00 | Window Closed / Lapsed |