US4792341A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hair photobleaching
Assignee: P&G Hair Care Holding Inc
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Filing: 1986-06-19
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Granted: 1988-12-20
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Expires: 2006-06-19
Abstract
Abstract A method and apparatus for artificially bleaching or lightening hair by exposing the hair to intense radiation of artificial light. The light is typically from a laser or flashlamp source and provides adequate intensity and power during the lifetime of the excited melanin molecule in the hair to substantially destroy at least some of the melanin molecules in the hair.
Inventors
- 👤 Stan D. Kozikowski
- 👤 J. Menkart
- 👤 L. J. Wolfram
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 18:24
CPC Classifications
A; A61; A61Q; A61Q5/00; A61Q5/08; A45; A45D; A45D19/00; A45D19/0041; A45D19/0066; A61K; A61K8/00; A61K8/02; D; D06; D06M; D06M10/00; D06M10/001; D06M10/005; A61B; A61B18/00; A61B18/18; A61B18/20; A61B18/203; A61B2018/00315; A61B2018/00452; A61B2018/1807; A61K2800/00; A61K2800/80; A61K2800/81; A61N; A61N5/00; A61N5/06; A61N5/0613; A61N5/0616; A61N5/0617; A61N5/067; Y; Y10; Y10S; Y10S204/00; Y10S204/901
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
43 words
A method of bleaching hair by exposing the hair to one or more effective bursts of radiation of artificial light whereby the radiation's intensity is sufficient to bleach melanin in the hair, wherein the light is generated from a laser or flashlamp source.
Claim 2
Independent Claim
43 words
A method of bleaching hair by exposing the hair to one or more effective bursts of radiation of artificial light whereby the radiation's intensity is sufficient to bleach melanin in the hair, wherein the light is generated from a laser or flashlamp source.
Claim 3
Dependent Claim
19 words
The method of claim 1, wherein the light is generated from a laser source operating at its basic frequency.
Claim 4
Dependent Claim
20 words
The method of claim 1, wherein the light is generated from a laser source operating at one of its harmonics.
Claim 5
Dependent Claim
14 words
The method of claim 1, wherein the light is generated from a flashlamp source.
Claim 6
Dependent Claim
15 words
The method of claim 1, wherein the light is generated from a solid state laser.
Claim 7
Dependent Claim
19 words
The method of claim 5, wherein the laser is based on one of a glass or crystalline lasing material.
Claim 8
Dependent Claim
13 words
The method of claim 6, wherein the laser is a neodymium glass laser.
Claim 9
Dependent Claim
13 words
The method of claim 6, where the laser is a ruby crystal lsser.
Claim 10
Dependent Claim
20 words
The method of claim 1, wherein the light is generated from a pumped laser or a flashlamp pumped dye laser.
Claim 11
Dependent Claim
15 words
The method of claim 1, wherein light is generated from an excimer pumped dye laser.
References Cited (Backward Citations)
US3281263A
Cited
US3941670A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-12-20 | 1992-06-20 | 1992-12-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-12-20 | 1996-06-20 | 1996-12-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-12-20 | 2000-06-20 | 2000-12-20 | $7700.00 | Window Closed / Lapsed |