Patent US4733425A successfully refreshed from Google Patents.
US4733425A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mascara brush
Assignee: Anchor Advanced Products Inc
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Filing: 1986-06-16
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Granted: 1988-03-29
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Expires: 2006-06-16
Abstract
Abstract Mascara brush construction composed of a plurality of radially extending bristle filaments fastened in brush formation by a helically twisted metallic wire core. The bristles are tubular or hollow polyamide filaments, each crimped at the midpoint of its length by portions of the helically twisted wire so that the filament halves flare outward in various directions from the brush core. In an alternate embodiment the filaments are noncircular in cross-section and include a plurality of longitudinal, radially extending flange portions.
Inventors
- 👤 Franklin J. Hartel
- 👤 Eric W. Sanderson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 12:18
CPC Classifications
A; A46; A46D; A46D1/00; A46D1/02; A46D1/0238; A45; A45D; A45D40/00; A45D40/26; A45D40/262; A45D40/265; A46B; A46B3/00; A46B3/18; A46D1/0246; A46B2200/00; A46B2200/10; A46B2200/1046; A46B2200/1053
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
128 words
Applicator brush for liquid-type cosmetics comprising a core and bristle portion having a bristle face of generally circular configuration, said core being formed by lengths of metallic wire helically twisted together, said bristle portion being formed by a plurality of bristles extending radially from said core, pairs of said bristles being formed by discrete synthetic plastic filaments that are tubular or have irregularly shaped cross-sections and which are gripped medially of their outer ends by the twisted lengths of wire, the cross-sectional configuration and stiffness of said filaments being such that the gripping thereof will cause said filaments to be crimped so that the filaments flare outwardly in various directions from said core whereby the tip portions of said bristles are generally uniformly distributed throughout said bristle face.
Claim 2
Dependent Claim
128 words
Applicator brush for liquid-type cosmetics comprising a core and bristle portion having a bristle face of generally circular configuration, said core being formed by lengths of metallic wire helically twisted together, said bristle portion being formed by a plurality of bristles extending radially from said core, pairs of said bristles being formed by discrete synthetic plastic filaments that are tubular or have irregularly shaped cross-sections and which are gripped medially of their outer ends by the twisted lengths of wire, the cross-sectional configuration and stiffness of said filaments being such that the gripping thereof will cause said filaments to be crimped so that the filaments flare outwardly in various directions from said core whereby the tip portions of said bristles are generally uniformly distributed throughout said bristle face.
Claim 3
Dependent Claim
30 words
Applicator brush as set forth in claim 1, in which at least some of said filaments, except where crimped by the wire core, are tubular in cross-section throughout their length
Claim 4
Dependent Claim
34 words
Applicator brush as set forth in claim 1, in which at least some of said filaments, except where crimped by the wire core, are generally cylindrical and hollow in cross-section and are polyamide material.
Claim 5
Dependent Claim
29 words
Applicator brush as set forth in claim 1, in which at least some of said filaments are noncircular in cross-section and include a plurality of radially extending web portions.
Claim 6
Dependent Claim
20 words
Applicator brush as set forth in claim 4, in which some of said filaments include longitudinal, radially extending flange portions.
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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) | 1991-03-29 | 1991-09-28 | 1992-03-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-03-29 | 1995-09-28 | 1996-03-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-03-29 | 1999-09-28 | 2000-03-29 | $7700.00 | Window Closed / Lapsed |