US3914801A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of applying hair
Assignee: HAIR AGAIN Ltd
•
Filing: 1971-09-14
•
Granted: 1975-10-28
•
Expires: 1991-09-14
Abstract
Abstract A method of applying hair in which sutures are sewn into the scalp and wefts of hair are affixed to the sutures. The major portion of the suture is embedded under the skin of the scalp and the remainder of the suture is exposed on top of the skin. The suture is preferably a thread made from a synthetic polymer which is impregnated or coated with an inert substance such as polytetrafluoroethylene or a silicone. The process of inserting the sutures is performed with a cutting needle having the thread integrally attached.
Inventors
- 👤 Lionel A Dick
- 👤 Stephen B Kurtin
- 👤 Maurice A Mann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 01:15
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/02; A61F2/10
Claims Analysis
Total Claims: 24
Claim 1
Independent Claim
166 words
An improved method of applying hair to a portion of a scalp in which a surgical thread is sewn below the dermis of the scalp to form a number of partially exposed loops on the scalp to which wefts of hair are directly attached, wherein the improvement comprises: 1. passing a reverse cutting needle having integrally embedded therein a surgical thread of a synthetic polymer which is coated or impregnated with an inert substance into and through the scalp for a distance of about 1 to 1 1/2 inches, 2. passing said needle and surgical thread over the scalp for a distance of about 1/2 inch, 3. repeating said steps (1) and (2) to form a circumferential series of loops on the scalp, 4. bringing together and knotting the ends of said surgical thread, and 5. affixing said wefts of hair and each end of said surgical thread to the adjacent exposed portion of said surgical thread by securing them together with a very thin thread.
Claim 2
Dependent Claim
166 words
An improved method of applying hair to a portion of a scalp in which a surgical thread is sewn below the dermis of the scalp to form a number of partially exposed loops on the scalp to which wefts of hair are directly attached, wherein the improvement comprises: 1. passing a reverse cutting needle having integrally embedded therein a surgical thread of a synthetic polymer which is coated or impregnated with an inert substance into and through the scalp for a distance of about 1 to 1 1/2 inches, 2. passing said needle and surgical thread over the scalp for a distance of about 1/2 inch, 3. repeating said steps (1) and (2) to form a circumferential series of loops on the scalp, 4. bringing together and knotting the ends of said surgical thread, and 5. affixing said wefts of hair and each end of said surgical thread to the adjacent exposed portion of said surgical thread by securing them together with a very thin thread.
Claim 3
Dependent Claim
16 words
passing said needle and surgical thread over the scalp for a distance of about 1/2 inch,
Claim 4
Dependent Claim
16 words
passing said needle and surgical thread over the scalp for a distance of about 1/2 inch,
Claim 5
Dependent Claim
22 words
The method of claim 1 including the step of selecting said synthetic polymer from the group consisting of polyesters, polyamides and polyolefins.
Claim 6
Dependent Claim
14 words
bringing together and knotting the ends of said surgical thread above the scalp, and
Claim 7
Dependent Claim
14 words
bringing together and knotting the ends of said surgical thread above the scalp, and
Claim 8
Dependent Claim
32 words
affixing said wefts of hair and the ends of each of said surgical threads to the adjacent exposed portion of said surgical thread by securing them Together with a very thin thread.
Claim 9
Dependent Claim
32 words
affixing said wefts of hair and the ends of each of said surgical threads to the adjacent exposed portion of said surgical thread by securing them Together with a very thin thread.
Claim 10
Dependent Claim
21 words
The method of claim 1 including the step of selecting said inert substance from the group consisting of polyhalohydrocarbons and silicones.
Claim 11
Dependent Claim
16 words
repeating said steps (1) and (2) to form a circumferential series of loops on the scalp,
Claim 12
Dependent Claim
16 words
repeating said steps (1) and (2) to form a circumferential series of loops on the scalp,
Claim 13
Dependent Claim
11 words
bringing together and knotting the ends of said surgical thread, and
Claim 14
Dependent Claim
11 words
bringing together and knotting the ends of said surgical thread, and
Claim 15
Dependent Claim
18 words
The method of claim 1 including the step of selecting said surgical thread from polyesters impregnated with polytetrafluoroethylene.
Claim 16
Dependent Claim
21 words
The method of claim 1, including as a first step circumferentially engaging said surgical thread in one end of said needle.
Claim 17
Dependent Claim
30 words
affixing said wefts of hair and each end of said surgical thread to the adjacent exposed portion of said surgical thread by securing them together with a very thin thread.
Claim 18
Dependent Claim
30 words
affixing said wefts of hair and each end of said surgical thread to the adjacent exposed portion of said surgical thread by securing them together with a very thin thread.
Claim 19
Dependent Claim
48 words
An improved method of applying hair to a portion of a scalp in which surgical threads are sewn below the dermis of the scalp to form a number of partially exposed individual loops on the scalp to which wefts of hair are directly attached, wherein the improvement comprises:
Claim 20
Dependent Claim
48 words
An improved method of applying hair to a portion of a scalp in which surgical threads are sewn below the dermis of the scalp to form a number of partially exposed individual loops on the scalp to which wefts of hair are directly attached, wherein the improvement comprises:
Claim 21
Dependent Claim
22 words
The method of claim 6 including the step of selecting said synthetic polymer from the group consisting of polyesters, polyamides and polyolefins.
Claim 22
Dependent Claim
21 words
The method of claim 6 including the step of selecting said inert substance from the group consisting of polyhalohydrocarbons and silicones.
Claim 23
Dependent Claim
18 words
The method of claim 7 including the step of selecting said surgical thread from polyesters impregnated with polytetrafluoroethylene.
Claim 24
Dependent Claim
21 words
The method of claim 6 including as a first step circumferentially engaging said surgical thread in one end of said needle.
References Cited (Backward Citations)
US2591063A
Cited
US3094123A
Cited
US3038475A
Cited
US3394704A
Cited
US3553737A
Cited
US3608095A
Cited
US3621837A
Cited
US3699969A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-10-27 | 1979-04-28 | 1979-10-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-10-27 | 1983-04-28 | 1983-10-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-10-27 | 1987-04-28 | 1987-10-28 | $7700.00 | Window Closed / Lapsed |