US4240451A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Differential hair engagement retainer
Assignee: THOMPSON RUSSELL L
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Filing: 1979-02-26
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Granted: 1980-12-23
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Expires: 1999-02-26
Abstract
Abstract A differential hair engaging retainer to be used in combination with a hair roller, and comprised of stretchable means extending lengthwise of the hair roller for retainer hair about said roller and forming multiple spaces between said means and said roller, with or without hair extending therethrough, to permit lotions to pass therethrough in all positions of proximity of said stretchable means to said roller.
Inventors
- 👤 Russell L. Thompson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 12:13
CPC Classifications
A; A45; A45D; A45D2/00; A45D2/12; A45D2/14
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
106 words
A differential hair engaging retainer to be used in combination with a hair roller, and comprised of a stretchable elastomeric band extending lengthwise of the hair roller for retaining hair about said roller, the band including multiple alternating beads and rods located along the band length and forming multiple spaces between the band and said roller and between the beads, with or without hair extending therethrough, to permit lotions to pass therethrough in all positions of proximity of said stretchable band to said roller, the beads having substantially larger cross-sectional areas than the rods presented toward the roller to seat on hair wrapped about the roller.
Claim 2
Dependent Claim
106 words
A differential hair engaging retainer to be used in combination with a hair roller, and comprised of a stretchable elastomeric band extending lengthwise of the hair roller for retaining hair about said roller, the band including multiple alternating beads and rods located along the band length and forming multiple spaces between the band and said roller and between the beads, with or without hair extending therethrough, to permit lotions to pass therethrough in all positions of proximity of said stretchable band to said roller, the beads having substantially larger cross-sectional areas than the rods presented toward the roller to seat on hair wrapped about the roller.
Claim 3
Dependent Claim
34 words
The combination of claim 1 wherein said beads are generally oval-shaped in cross sections taken in planes through a common axis defined by the rods, the beads extending toward the roller for contact therewith.
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) | 1983-12-23 | 1984-06-23 | 1984-12-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-12-23 | 1988-06-23 | 1988-12-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-12-23 | 1992-06-23 | 1992-12-23 | $7700.00 | Window Closed / Lapsed |