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US4603706A Expired / Lapsed US ⏱️ 0.0 years remaining

Hair curler

Assignee: BLOOD DAVID W
•
Filing: 1983-03-04
•
Granted: 1986-08-05
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Expires: 2003-03-04
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Abstract

Abstract A hair curler for subjecting hair to steam to effect a curling action includes a hollow perforated core surrounded by a porous substrate. The core has circular extensions on each end which have a diameter greater than the diameter of the core. At lest one of the extensions is open at its end remote from the core and has an axial length which is substantially less than the length of the core.

Inventors

  • 👤 Richard Caruso

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-09 02:09
CPC Classifications
A; A45; A45D; A45D4/00; A45D4/08; A45D4/10; A45D2/00; A45D2/12; A45D2/24; A45D4/16

Claims Analysis

Total Claims: 19
Claim 1
Independent Claim 134 words
A hair curler comprising: a tubular core having a plurality of slots axially disposed around a circumference of the core, the core being open at one end and closed at the other end; a circular extension disposed at each end of the core, the extension having a diameter greater than the diameter of the core and being coaxial with the core, a length of the extension being substantially less than a length of the core; a tubular porous substrate surrounding the core and being between the extensions and being in contact with the core; and a tubular casing having a plurality of slots axially disposed around a circumference of the casing, the slots terminating proximal ends of the casing, the casing surrounding the substrate between the extensions and being in contact with the substrate.
Claim 2
Dependent Claim 134 words
A hair curler comprising: a tubular core having a plurality of slots axially disposed around a circumference of the core, the core being open at one end and closed at the other end; a circular extension disposed at each end of the core, the extension having a diameter greater than the diameter of the core and being coaxial with the core, a length of the extension being substantially less than a length of the core; a tubular porous substrate surrounding the core and being between the extensions and being in contact with the core; and a tubular casing having a plurality of slots axially disposed around a circumference of the casing, the slots terminating proximal ends of the casing, the casing surrounding the substrate between the extensions and being in contact with the substrate.
Claim 3
Dependent Claim 21 words
A hair curler in accordance with claim 1 wherein each of said extension has openings in a generally axial surface thereof.
Claim 4
Dependent Claim 34 words
A hair curler in accordance with claim 1 including an annular boss at each end of the core, each of said extensions having an axial length greater than the axial length of the bosses.
Claim 5
Dependent Claim 27 words
A hair curler in accordance with claim 1 including a generally semi-circular shield, said shield having a handle approximately equidistant from the free ends of the shield.
Claim 6
Dependent Claim 23 words
A hair curler in accordance with claim 4 wherein said shield has slots therethrough to facilitate passage of heated air for drying hair.
Claim 7
Dependent Claim 21 words
A hair curler in accordance with claim 1 wherein said tubular porous substrate is corrugated with the corrugations extending axially thereof.
Claim 8
Dependent Claim 24 words
A hair curler in accordance with claim 1 including means supporting said extensions is a rim extending radially from the ends of said core.
Claim 9
Dependent Claim 74 words
A hair curler in accordance with claim 1 including a source of steam, said source of steam having a hollow nozzle open at one end thereof, said nozzle having perforations along the length thereof, the diameter of said inlet being sufficient so that the nozzle may extend through said inlet, the length of said core and first extension being arranged so that the nozzle end terminates approximately equidistant from the ends of the core.
Claim 10
Dependent Claim 19 words
The hair curler according to claim 1 wherein said casing includes a plurality of axially disposed radially extending projections.
Claim 11
Dependent Claim 27 words
The hair curler according to claim 1 wherein each of said extensions is conical with the smaller diameter end thereof being adjacent the end of the core.
Claim 12
Dependent Claim 156 words
A hair curler comprising: a tubular core having a plurality of slots axially disposed around a circumference of the core; a rim located at each end of the core, each rim extending radially from the core and having a diameter greater than the core and being coaxial with the core, one rim having an opening which is coaxial with the core and having a diameter no greater than the core; a circular extension located at a periphery of the rim and extending axially therefrom, an axially length of the extension being less than an axial length of the core; a tubular porous substrate surrounding and in contact with the core and being disposed between the rims; and a tubular casing having a plurality of slots axially disposed around a circumference of the casing, the slots terminating proximal ends of the casing, the casing surrounding and being in contact with the substrate and being between said rims.
Claim 13
Dependent Claim 156 words
A hair curler comprising: a tubular core having a plurality of slots axially disposed around a circumference of the core; a rim located at each end of the core, each rim extending radially from the core and having a diameter greater than the core and being coaxial with the core, one rim having an opening which is coaxial with the core and having a diameter no greater than the core; a circular extension located at a periphery of the rim and extending axially therefrom, an axially length of the extension being less than an axial length of the core; a tubular porous substrate surrounding and in contact with the core and being disposed between the rims; and a tubular casing having a plurality of slots axially disposed around a circumference of the casing, the slots terminating proximal ends of the casing, the casing surrounding and being in contact with the substrate and being between said rims.
Claim 14
Dependent Claim 34 words
A hair curler in accordance with claim 11 including an annular boss at each end of the core, each of said extensions having an axial length greater than the axial length of the bosses.
Claim 15
Dependent Claim 27 words
A hair curler in accordance with claim 11 including a generally semi-circular shield, said shield having a handle approximately equidistant from the free ends of the shield.
Claim 16
Dependent Claim 23 words
A hair curler in accordance with claim 13 wherein said shield has slots therethrough to facilitate passage of heated air for drying hair.
Claim 17
Dependent Claim 21 words
A hair curler in accordance with claim 11 wherein said tubular porous substrate is corrugated with the corrugations extending axially thereof.
Claim 18
Dependent Claim 25 words
A hair curler in accordance with claim 11 wherein said means supporting said extensions is a rim extending radially from the ends of said core.
Claim 19
Dependent Claim 19 words
A hair curler in accordance with claim 11 wherein said extensions are supported by a casing surrounding the substrate.

References Cited (Backward Citations)

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US2145539A Cited
US2604893A Cited
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USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1989-08-04 1990-02-03 1990-08-05 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1993-08-04 1994-02-03 1994-08-05 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1997-08-04 1998-02-03 1998-08-05 $7700.00 Window Closed / Lapsed

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