US5170808A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Acid perm method
Assignee: Individual
•
Filing: 1988-08-08
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Granted: 1992-12-15
•
Expires: 2008-08-08
Abstract
Abstract In acid perms, the moist hair while still wet from a shampoo is wound around curling rods and saturated with an acid perm solution. A band or strip of absorbent cotton is placed across the forehead below the hair line. The rim of a visor is mounted on the band and held in place by the lower end of a plastic bag tightened around the head and fastened in place. A preheated hair dryer is lowered over the bag and the heat from the dryer releases acid fumes which are held in contact with the hair until the perm is set. The band absorbs any seepage. The visor protects the eyes from acid fumes. Result: a better perm with no skin or eye irritation.
Inventors
- 👤 Patricia A. Vild
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 15:28
CPC Classifications
A; A45; A45D; A45D7/00; A45D7/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
173 words
The method of permanent waving or making a perm with a heat activated acid solution applied to hair wrapped on rods and other curling devices which comprises wrapping an absorbent cotton band around the head at the hairline and above the eyes to absorb seepage of solution to the skin, applying a visor having a rim with the rim of the visor overlying the band on the forehead and the balance of the visor projecting from the forehead over the eyes to deflect fumes and heat away from the eyes, and applying a plastic bag having an open end and a closed end over the hair with the open end of the bag overlying the absorbent band and the rim of the visor and with the closed end of the bag enclosing the hair to hold in contact with the hair the fumes of the solution generated when a preheated hair drying hood is lowered over the bag to activate the solution and to maintain the hair heated until the perm is set.
Claim 2
Independent Claim
173 words
The method of permanent waving or making a perm with a heat activated acid solution applied to hair wrapped on rods and other curling devices which comprises wrapping an absorbent cotton band around the head at the hairline and above the eyes to absorb seepage of solution to the skin, applying a visor having a rim with the rim of the visor overlying the band on the forehead and the balance of the visor projecting from the forehead over the eyes to deflect fumes and heat away from the eyes, and applying a plastic bag having an open end and a closed end over the hair with the open end of the bag overlying the absorbent band and the rim of the visor and with the closed end of the bag enclosing the hair to hold in contact with the hair the fumes of the solution generated when a preheated hair drying hood is lowered over the bag to activate the solution and to maintain the hair heated until the perm is set.
References Cited (Backward Citations)
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Cited
US2033691A
Cited
US2241855A
Cited
US3167785A
Cited
US3348240A
Cited
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Cited
US4656671A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1995-12-15 | 1996-06-15 | 1996-12-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-12-15 | 2000-06-15 | 2000-12-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-12-15 | 2004-06-15 | 2004-12-15 | $7700.00 | Window Closed / Lapsed |