US3987805A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hair curler
Assignee: GRISO CHEMIE AG
•
Filing: 1974-02-25
•
Granted: 1976-10-26
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Expires: 1994-02-25
Abstract
Abstract A self-adhering hair curler comprises an elongated cylindrical foam body and equidistantly spaced elongated strips of bristles bonded to the peripheral surface of the body and extending longitudinally thereof.
Inventors
- 👤 Wilhelm Schuster
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 12:52
CPC Classifications
A; A45; A45D; A45D2/00; A45D2/12; A45D2/24; A45D2/2464; A45D2/2471; A45D2/2478
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
36 words
A self-adhering hair curler comprising an elongated cylindrical body of resiliently compressible synthetic resin foam and substantially equidistantly spaced elongated strips of bristle material bonded to the peripheral surface of the body and extending longitudinally thereof.
Claim 2
Dependent Claim
36 words
A self-adhering hair curler comprising an elongated cylindrical body of resiliently compressible synthetic resin foam and substantially equidistantly spaced elongated strips of bristle material bonded to the peripheral surface of the body and extending longitudinally thereof.
Claim 3
Dependent Claim
27 words
The hair curler of claim 1, wherein the spacing between the strips is at least as wide as the strips, the spacing not exceeding about 15 mm.
Claim 4
Dependent Claim
21 words
The hair curler of claim 1, wherein the density of the synthetic resin foam is between about 45 to 65 kg/cu.m.
Claim 5
Dependent Claim
23 words
The hair curler of claim 1, wherein the curler is compressible to a volume of about one third of the original volume thereof.
Claim 6
Dependent Claim
45 words
The hair curler of claim 1, wherein the elongated strips are of substantially the same length, the strip length being somewhat shorter than the length of the cylindrical body to leave free rims of the peripheral surface along the respective ends of the cylindrical body.
Claim 7
Dependent Claim
20 words
The hair curler of claim 1, wherein the bristles extend substantially radially from the peripheral surface of the cylindrical body.
Claim 8
Dependent Claim
22 words
The hair curler of claim 1, wherein the bristles extend in a chordal direction from the peripheral surface of the cylindrical body.
Claim 9
Dependent Claim
14 words
The hair curler of claim 1, wherein the ends of the bristles are hook-shaped.
Claim 10
Dependent Claim
11 words
The hair curler of claim 1 wherein said body is solid.
Claim 11
Dependent Claim
18 words
The hair curler of claim 3, wherein the density of the synthetic resin foam is about 55 kg/cu.m.
References Cited (Backward Citations)
US2582550A
Cited
US3144027A
Cited
US3267942A
Cited
US3216427A
Cited
US3533418A
Cited
US3529608A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-10-26 | 1980-04-26 | 1980-10-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-10-26 | 1984-04-26 | 1984-10-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-10-26 | 1988-04-26 | 1988-10-26 | $7700.00 | Window Closed / Lapsed |