Patent US4628564A successfully refreshed from Google Patents.
US4628564A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Toothbrush
Assignee: Individual
•
Filing: 1983-04-27
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Granted: 1986-12-16
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Expires: 2003-04-27
Abstract
Abstract A toothbrush with a liquid-storing sponge structure formed with a thickness diminishing to a pointed head which projects outwardly longitudinally from the bristle head. The sponge structure is in contacting engagement with the bristles whereby the stored liquid may be introduced into and along the rows of bristles. The sponge structure carries more liquid than the bristles alone and thereby generates a cleansing foam to the teeth.
Inventors
- 👤 Kamal A. Youssef
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 20:13
CPC Classifications
A; A46; A46B; A46B15/00; A46B15/0055; A46B15/0067; A46B11/00; A46B9/00; A46B9/005; A46B9/06; A46B2200/00; A46B2200/10; A46B2200/1066
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
136 words
A toothbrush, comprising: a handle; a bristle-supporting head at one end of said handle; elongate rows of bristles fixed in, and extending from, said head; and means for storing liquid fixed to said head; wherein all bristles of said rows thereof have only single ends thereof fixed against movement, said ends being fixed in said head, remaining lengths of said bristles being in free projection from said head; and said liquid-storing means is fixed to said head, and is set astride and in contacting engagement with first ends of said rows of bristles, whereby liquid stored by said means may be introduced into and along said rows said liquid-storing means comprises a resiliently compliant and absorbent material, said material being formed with a thickness diminishing to a pointed end which projects outwardly longitudinally from said head.
Claim 2
Dependent Claim
136 words
A toothbrush, comprising: a handle; a bristle-supporting head at one end of said handle; elongate rows of bristles fixed in, and extending from, said head; and means for storing liquid fixed to said head; wherein all bristles of said rows thereof have only single ends thereof fixed against movement, said ends being fixed in said head, remaining lengths of said bristles being in free projection from said head; and said liquid-storing means is fixed to said head, and is set astride and in contacting engagement with first ends of said rows of bristles, whereby liquid stored by said means may be introduced into and along said rows said liquid-storing means comprises a resiliently compliant and absorbent material, said material being formed with a thickness diminishing to a pointed end which projects outwardly longitudinally from said head.
Claim 3
Dependent Claim
21 words
A toothbrush, according to claim 1, wherein: said liquid-storing means is enwrapped about said first ends of said rows of bristles.
Claim 4
Dependent Claim
26 words
A toothbrush, according to claim 1, wherein: a portion of said material is raised in elevation and buttresses said first ends of said rows of bristles.
Claim 5
Dependent Claim
24 words
A toothbrush, according to claim 1, wherein: said head has a given width; and said material has a width greater than said given width.
References Cited (Backward Citations)
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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) | 1989-12-15 | 1990-06-16 | 1990-12-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-12-15 | 1994-06-16 | 1994-12-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-12-15 | 1998-06-16 | 1998-12-16 | $7700.00 | Window Closed / Lapsed |