US4176669A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of attaching hair pieces
Assignee: Individual
•
Filing: 1977-05-31
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Granted: 1979-12-04
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Expires: 1997-05-31
Abstract
Abstract The method involves coating the periphery of a bald area on a person's head with a silicone adhesive sealant to define a peripheral track. The sealant actually penetrates the pores of the scalp and provides a mechanical coupling. Reinforcing material is in turn embedded after applying layers of the coating within this coating about the marginal edge of the bald spot. The marginal track or coatings are permitted to dry and the hair supporting base material of a hair piece is then stitched to the reinforcing material in the marginal track to thereby secure the hair piece in place.
Inventors
- 👤 Don Levin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 23:10
CPC Classifications
A; A41; A41G; A41G5/00; A41G5/0006; A41G5/0013; A41G5/0033
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
144 words
A method of attaching a hair piece to cover a bald area on a person's head wherein the contour of the hair supporting base material of the hair piece has been cut to correspond to the perimeter of the bald area, including the steps of: (a) coating the perimeter of said bald area with a bonding material which penetrates the pores of the skin and cures in the presence of water to define a marginal track about the peripheral edge of the bald area which is effectively mechanically locked to the scalp; (b) embedding a reinforcing material in said marginal track while in a tacky state so as to be retained in its set position after said bonding material completely dries; and (c) stitching the periphery of said hair supporting base material of said hair piece to said reinforcing material in said marginal track.
Claim 2
Independent Claim
144 words
A method of attaching a hair piece to cover a bald area on a person's head wherein the contour of the hair supporting base material of the hair piece has been cut to correspond to the perimeter of the bald area, including the steps of: (a) coating the perimeter of said bald area with a bonding material which penetrates the pores of the skin and cures in the presence of water to define a marginal track about the peripheral edge of the bald area which is effectively mechanically locked to the scalp; (b) embedding a reinforcing material in said marginal track while in a tacky state so as to be retained in its set position after said bonding material completely dries; and (c) stitching the periphery of said hair supporting base material of said hair piece to said reinforcing material in said marginal track.
Claim 3
Dependent Claim
15 words
The method of claim 1, in which said bonding material comprises a silicone adhesive sealant.
Claim 4
Independent Claim
301 words
A method of attaching a hair piece to cover a bald area on a person's head, wherein the contour of the hair supporting base material has been cut to correspond to the perimeter of the bald area, comprising the steps of: (a) coating the perimeter of said bald area with a silicone adhesive sealant which penetrates the pores of the skin and cures in the presence of water to define a marginal track about the peripheral edge of the bald area of from 1/4 to 3/4 inch in width; (b) permitting said marginal track to dry for from two to five minutes; (c) coating said marginal track with a second layer of silicone adhesive sealant; (d) permitting said second layer to dry for from two to five minutes; (e) coating said second layer with a third layer of said silicone adhesive sealant; (f) permitting said third layer to partially dry to a tacky consistency over a period less than two minutes; (g) embedding a reinforcing material of less width than said marginal track in said third layer while in a tacky state; (h) permitting said third layer to completely dry after embedding said reinforcing material so that said reinforcing material is set in said third layer; (i) coating over said third layer and said reinforcing material with a fourth layer of said silicone adhesive sealant; (j) permitting said fourth layer to dry for from two to five minutes; (k) applying said hair piece to said bald area with the peripheral edge of said hair supporting base material overlying said fourth layer; and (l) stitching with a monofilament transparent thread said peripheral edge of said hair supporting base material to said reinforcing material embedded under said fourth layer, whereby said hairpiece is mechanically held to said marginal track about its entire periphery.
Claim 5
Independent Claim
301 words
A method of attaching a hair piece to cover a bald area on a person's head, wherein the contour of the hair supporting base material has been cut to correspond to the perimeter of the bald area, comprising the steps of: (a) coating the perimeter of said bald area with a silicone adhesive sealant which penetrates the pores of the skin and cures in the presence of water to define a marginal track about the peripheral edge of the bald area of from 1/4 to 3/4 inch in width; (b) permitting said marginal track to dry for from two to five minutes; (c) coating said marginal track with a second layer of silicone adhesive sealant; (d) permitting said second layer to dry for from two to five minutes; (e) coating said second layer with a third layer of said silicone adhesive sealant; (f) permitting said third layer to partially dry to a tacky consistency over a period less than two minutes; (g) embedding a reinforcing material of less width than said marginal track in said third layer while in a tacky state; (h) permitting said third layer to completely dry after embedding said reinforcing material so that said reinforcing material is set in said third layer; (i) coating over said third layer and said reinforcing material with a fourth layer of said silicone adhesive sealant; (j) permitting said fourth layer to dry for from two to five minutes; (k) applying said hair piece to said bald area with the peripheral edge of said hair supporting base material overlying said fourth layer; and (l) stitching with a monofilament transparent thread said peripheral edge of said hair supporting base material to said reinforcing material embedded under said fourth layer, whereby said hairpiece is mechanically held to said marginal track about its entire periphery.
Claim 6
Dependent Claim
59 words
The method of claim 3, in which said hair supporting base material is in the form of a nylon mesh and in which said reinforcing means is in the form of a strip of a similar nylon mesh material, said stitching thread passing over and under various ones of the warps and woofs making up the respective nylon meshes.
References Cited (Backward Citations)
US2907334A
Cited
US3189035A
Cited
US3385305A
Cited
US3420249A
Cited
US3495603A
Cited
US3553737A
Cited
US3605761A
Cited
US3908674A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-12-03 | 1983-06-04 | 1983-12-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-12-03 | 1987-06-04 | 1987-12-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-12-03 | 1991-06-04 | 1991-12-04 | $7700.00 | Window Closed / Lapsed |