Patent US3589823A successfully refreshed from Google Patents.
US3589823A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Disposable toothbrush
Assignee: Individual
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Filing: 1969-09-02
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Granted: 1971-06-29
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Expires: 1989-09-02
Abstract
Abstract A disposable toothbrush with self-contained dentifrice in which bristles, base therefore and handle are molded in integral onepiece construction of flexible resilient material. A recess is defined in the rear of the base for storing the dentifrice and communicates with the bristles via openings through the base, whereby the dentifrice may be forced through the openings onto the bristles.
Inventors
- 👤 Orrin W Hendrickson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:14
CPC Classifications
A; A46; A46B; A46B11/00; A46B11/0003
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
151 words
A disposable toothbrush with self-contained dentifrice, comprising; a brush portion comprising a base and bristles extending from the front of said base; a handle; said bristles, base and handle being formed in integral onepiece construction of flexible resilient material; a recess defined into said base through the rear surface thereof, said recess being defined elongate and substantially the length of said base; one or more openings defined through said base, at said recess, to the front thereof; dentifrice within said recess and a cover close fit in said recess moveable inwardly toward said one or more openings for forcing said dentifrice therethrough onto said bristles; one or more rows of aid bristles being formed substantially axially central of said base and an arcuate row of said bristles being formed adjacent each side of said one or more axially central rows but spaced therefrom to define open regions thereat among said bristles.
Claim 2
Dependent Claim
151 words
A disposable toothbrush with self-contained dentifrice, comprising; a brush portion comprising a base and bristles extending from the front of said base; a handle; said bristles, base and handle being formed in integral onepiece construction of flexible resilient material; a recess defined into said base through the rear surface thereof, said recess being defined elongate and substantially the length of said base; one or more openings defined through said base, at said recess, to the front thereof; dentifrice within said recess and a cover close fit in said recess moveable inwardly toward said one or more openings for forcing said dentifrice therethrough onto said bristles; one or more rows of aid bristles being formed substantially axially central of said base and an arcuate row of said bristles being formed adjacent each side of said one or more axially central rows but spaced therefrom to define open regions thereat among said bristles.
Claim 3
Dependent Claim
22 words
The invention according to claim 1 in which said cover is a rigid member substantially conforming to the perimeter of said recess.
Claim 4
Dependent Claim
27 words
The invention according to claim 1 in which said cover for said recess conforms to the perimeter thereof and has an axial rib on its external surface.
Claim 5
Dependent Claim
27 words
The invention according to claim 1 in which said one or more openings comprise a plurality of ducts substantially in a line axially central of said base.
Claim 6
Dependent Claim
25 words
The invention according to claim 4 in which said bristles include two rows thereof formed relatively close along opposite sides of said line of ducts.
Claim 7
Dependent Claim
18 words
The invention according to cLaim 1 in which said bristles are each formed flat on two opposite sides.
Claim 8
Dependent Claim
24 words
The invention according to claim 1 in which said handle is formed with a depressed region lengthwise thereof for placement thereat of written matter.
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) | 1974-06-28 | 1974-12-28 | 1975-06-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-28 | 1978-12-28 | 1979-06-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-28 | 1982-12-28 | 1983-06-29 | $7700.00 | Window Closed / Lapsed |