Patent US4222399A successfully refreshed from Google Patents.
US4222399A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Artificial nail
Assignee: Individual
•
Filing: 1977-09-19
•
Granted: 1980-09-16
•
Expires: 1997-09-19
Abstract
Abstract An artificial nail, e.g. an artificial toenail or fingernail, is built up on a flat flexible resilient arcuate form which is mounted on the actual human nail. The artificial nail is formed by depositing a layer of a mush of resin powder and a liquid solvent on the form while it is in place on the actual nail. Then the form is removed from the human nail and the mush layer is allowed to become almost dry, by permitting evaporation of the solvent until the mush layer is transformed into a soft cohesive layer. The cohesive layer, i.e. the artificial nail, is then peeled from the form and emplaced on the human nail by applying a layer of liquid nail glue to the human nail and depositing the cohesive layer on the glue layer. The cohesive layer thus becomes adhesively attached to the human nail and is permitted to dry into an artificial nail attached to the human nail. The artificial nail is then filed into a uniform extension of the human nail.
Inventors
- 👤 Miruleta Ionescu
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 17:52
CPC Classifications
A; A45; A45D; A45D31/00
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
149 words
A method of forming an artificial nail on a human nail, comprising the steps of positioning a yieldable flat form on a human nail so that a portion of said form conformingly covers a surface zone of said human nail; forming a layer of hardinable artificial nail material only on said form so as to have the same outline as said surface zone; removing said form, together with said layer formed thereon, from said human nail; allowing said layer to partially harden on said form into a cohesive layer having the same outline on said portion as said surface zone; separating said partially hardened cohesive layer from said form, adhering said cohesive layer to said surface zone in conformity with the outlines and shape thereof; and permitting said cohesive layer to completely harden into an artificial nail which fully covers said surface zone and is curved in conformity therewith.
Claim 2
Independent Claim
149 words
A method of forming an artificial nail on a human nail, comprising the steps of positioning a yieldable flat form on a human nail so that a portion of said form conformingly covers a surface zone of said human nail; forming a layer of hardinable artificial nail material only on said form so as to have the same outline as said surface zone; removing said form, together with said layer formed thereon, from said human nail; allowing said layer to partially harden on said form into a cohesive layer having the same outline on said portion as said surface zone; separating said partially hardened cohesive layer from said form, adhering said cohesive layer to said surface zone in conformity with the outlines and shape thereof; and permitting said cohesive layer to completely harden into an artificial nail which fully covers said surface zone and is curved in conformity therewith.
Claim 3
Dependent Claim
62 words
The method of claim 1, wherein said forming step includes spreading a mush including a powder of a resin selected from the group consisting of an acrylic resin, polyvinyl acetate, a polyester, an aryl sulfonamide, ethyl cellulose, cellulose acetate butyrate, cellulose acetate, polyvinyl butyral, polyvinyl formal, methyl methacrylate, dammar, mastic, sandarac, benzoin and rosin (colophony) and a liquid solvent over said form.
Claim 4
Dependent Claim
42 words
The method of claim 2, wherein said forming step includes spreading a mush including a resin powder and a liquid solvent selected from the group consisting of acetone, acetic acid, ethyl acetate, dioxane, pyridine, ethanol, tetrachloroethane, trichloroethane and toluol over said form.
Claim 5
Dependent Claim
69 words
The method of claim 1, wherein one of said positioning steps includes so placing said form on said human nail that another portion of said form extends beyond said human nail in the direction of the growth of the latter; and wherein said forming step includes extending said layer beyond said portion to provide said artificial nail with an integral extension projecting beyond said human nail in said direction.
Claim 6
Dependent Claim
16 words
The method of claim 1, wherein said adhering step includes using a nail glue containing cyanoacrylate.
Claim 7
Dependent Claim
22 words
The method of claim 4; further comprising the step of filing the said extension to the desired shape following said hardening step.
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) | 1983-09-16 | 1984-03-17 | 1984-09-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-09-16 | 1988-03-17 | 1988-09-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-09-16 | 1992-03-17 | 1992-09-16 | $7700.00 | Window Closed / Lapsed |