US3814113A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Curling iron
Assignee: L'Oréal SA
•
Filing: 1972-05-31
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Granted: 1974-06-04
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Expires: 1992-05-31
Abstract
Abstract Curling iron comprises heating member and a flexible sleeve loosely fitted into said member, said sleeve being provided with external, radially projecting conical pins.
Inventors
- 👤 B Morane
- 👤 A Vien
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 20:29
CPC Classifications
A; A45; A45D; A45D1/00; A45D1/18; A45D1/02; A45D1/04
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
75 words
Device for waving the hair comprising a heat-insulated handle, a heating member carried by said handle and consisting of a cylindrical tube containing an electrical resistance, a sleeve made of a heat-insulating material encircling and loosely mounted on said heating member, and a nut carried by said heating member and clamping said sleeve against said handle, said sleeve having protuberances on its external surface which are regularly distributed around said surface and conical in shape.
Claim 2
Dependent Claim
75 words
Device for waving the hair comprising a heat-insulated handle, a heating member carried by said handle and consisting of a cylindrical tube containing an electrical resistance, a sleeve made of a heat-insulating material encircling and loosely mounted on said heating member, and a nut carried by said heating member and clamping said sleeve against said handle, said sleeve having protuberances on its external surface which are regularly distributed around said surface and conical in shape.
Claim 3
Dependent Claim
31 words
Device as claimed in claim 1 in which the sleeve is made of a relatively flexible material selected from the group consisting of rubber containing silicone and a polymer of 4-methyl-1-pentene.
Claim 4
Dependent Claim
18 words
Device as claimed in claim 1 in which said sleeve consists of a plurality of parallel coaxial rings.
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) | 1977-06-03 | 1977-12-03 | 1978-06-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-06-03 | 1981-12-03 | 1982-06-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-06-03 | 1985-12-03 | 1986-06-04 | $7700.00 | Window Closed / Lapsed |