US3624749A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hair curlers
Assignee: American Velcro Inc
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Filing: 1970-10-16
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Granted: 1971-11-30
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Expires: 1990-10-16
Abstract
Abstract A hair curler is disclosed having a cylindrical body member and a plurality of hair-gripping elements projecting from the outer surface of the body member. Each hair-gripping element includes generally two outer arms and an inner loop disposed in spaced relation to each other and between which loops strands of hair are held in a wound condition about the curler.
Inventors
- 👤 Laurent H Girard
- 👤 William A Ribich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 11:04
CPC Classifications
A; A45; A45D; A45D2/00; A45D2/12; A45D2/24; A45D2/2464; A45D2/2471; A45D2/2478
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
107 words
In a hair curler having a cylindrical body member and a plurality of hair-gripping elements projecting from the outer surface of the body member for holding strands of hair in a wound condition about the curler, the improvement wherein each hairgripping element comprises: a. Outer arms and an inner loop disposed generally within the outer arms in spaced relation thereto to thereby define a space between the inner loop and said outer arms through which said strands extend, said outer arms being separated at their terminal ends by a gap facilitating entry of strands of hair into the space defined between the inner loop and outer arms.
Claim 2
Dependent Claim
107 words
In a hair curler having a cylindrical body member and a plurality of hair-gripping elements projecting from the outer surface of the body member for holding strands of hair in a wound condition about the curler, the improvement wherein each hairgripping element comprises: a. Outer arms and an inner loop disposed generally within the outer arms in spaced relation thereto to thereby define a space between the inner loop and said outer arms through which said strands extend, said outer arms being separated at their terminal ends by a gap facilitating entry of strands of hair into the space defined between the inner loop and outer arms.
Claim 3
Dependent Claim
21 words
The improvement according to claim 1 wherein the outer arms and the inner loop are made of a flexible resilient material.
Claim 4
Dependent Claim
20 words
The improvement according to claim 2 wherein the outer arms and the inner loop are made of a plastic material.
Claim 5
Dependent Claim
27 words
The improvement according to claim 3 wherein the outer arms and inner loop upstand from and are formed integral with a flexible base sheet of plastic material.
Claim 6
Dependent Claim
23 words
The improvement according to claim 1 wherein said gap between said outer arms is located directly above the crest of the inner loop.
Claim 7
Dependent Claim
14 words
The improvement according to claim 5 wherein each curved arm has a cubic curvature.
Claim 8
Dependent Claim
15 words
The improvEment according to claim 6 wherein each arm has a generally trapezoidal cross-sectional configuration.
Claim 9
Dependent Claim
16 words
The improvement according to claim 7 wherein the inner loop has a generally triangular cross-sectional configuration.
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) | 1974-11-29 | 1975-05-31 | 1975-11-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-11-29 | 1979-05-31 | 1979-11-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-11-29 | 1983-05-31 | 1983-11-30 | $7700.00 | Window Closed / Lapsed |