US5030820A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Microwave/electric heatable hair curler
Assignee: JMK International Inc
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Filing: 1989-01-09
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Granted: 1991-07-09
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Expires: 2009-01-09
Abstract
Abstract A microwaveable hair curler is shown which is also electrically heatable. The microwaveable hair curler is preferably blended from a polyorganosiloxane gum, a particulate electromagnetic absorptive material, a filler and a catalyst and extruded as in a cylindrical shape. The hair curler is heatable by exposure to microwave energy in a microwave oven or can be used in a variety of commercially available electric heating units.
Inventors
- 👤 Robert M. Gibbon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 02:09
CPC Classifications
H; H05; H05B; H05B6/00; H05B6/64; A; A45; A45D; A45D2/00; A45D2/12; A45D2/24; A45D4/00; A45D4/16; B; B29; B29C; B29C48/00; B29C48/03; B29C48/09; B29C48/10; B29C48/12; B29C48/25; B29C48/30; B29C48/32; B29C48/335; B29K; B29K2083/00
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
152 words
A microwave/electric heatable hair curling apparatus comprising: a plurality of microwave heatable hair curlers, each of said hair curlers being formed as a tubular curler body having an open interior, an exterior and at least one open end, and wherein each of said tubular curler bodies is comprised of a matrix material having blended therein an electromagnetic absorptive material to produce a homogeneous matrix composition which is heatable by exposure to microwave energy; an electrical heating member having a plurality of upwardly extending heating prongs mounted thereon at least one of said prongs having one of said plurality of microwave heatable hair curlers received thereon, each of said heating prongs having a conductive element which is connected to an electrical heating source for transferring heat to hair which is wound about the exterior of said tubular curler bodies, whereby said curler bodies are selectively heatable electrically and by exposure to microwave energy.
Claim 2
Dependent Claim
152 words
A microwave/electric heatable hair curling apparatus comprising: a plurality of microwave heatable hair curlers, each of said hair curlers being formed as a tubular curler body having an open interior, an exterior and at least one open end, and wherein each of said tubular curler bodies is comprised of a matrix material having blended therein an electromagnetic absorptive material to produce a homogeneous matrix composition which is heatable by exposure to microwave energy; an electrical heating member having a plurality of upwardly extending heating prongs mounted thereon at least one of said prongs having one of said plurality of microwave heatable hair curlers received thereon, each of said heating prongs having a conductive element which is connected to an electrical heating source for transferring heat to hair which is wound about the exterior of said tubular curler bodies, whereby said curler bodies are selectively heatable electrically and by exposure to microwave energy.
Claim 3
Dependent Claim
67 words
The microwave/electric heatable hair curling apparatus of claim 1, wherein said matrix material is a silicone rubber composition which has been extruded through a die and then cut to the desired length, said silicone rubber composition being blended from a polyorganosiloxane gum, a particulate, electromagnetic absorptive material, a filler and a curing catalyst to produce a homogeneous matrix composition which is heatable by exposure to microwave energy.
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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) | 1994-07-08 | 1995-01-07 | 1995-07-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-07-08 | 1999-01-07 | 1999-07-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-07-08 | 2003-01-07 | 2003-07-09 | $7700.00 | Window Closed / Lapsed |