US3879791A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Training toothbrush
Assignee: Individual
•
Filing: 1973-12-14
•
Granted: 1975-04-29
•
Expires: 1993-12-14
Abstract
Abstract A toothbrush is disclosed, comprising a body, including a handle and a brush head portion thereof, bristle-retaining means slidably attached to the brush head portion of the body for reciprocating motion exclusively in a longitudinal direction with respect to the body, and a plurality of bristles rigidly attached to the bristle-retaining means, also for exclusive longitudinal motion with respect to the body, to be used for purposes of training proper toothbrushing techniques.
Inventors
- 👤 Stuart Isler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 12:16
CPC Classifications
A; A46; A46B; A46B7/00; A46B7/06; A46B2200/00; A46B2200/10; A46B2200/1066
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
154 words
A toothbrush comprising a body, including a handle portion and a brush head portion, bristle-retaining means slidably attached to said brush head portion of said body for permitting reciprocating motion of said bristle-retaining means exclusively in a longitudinal direction with respect to said body, means for restricting the longitudinal motion of said bristle-retaining means between fixed points on said brush head portion of said body, said bristle-retaining means being freely slidably between said fixed points, and a plurality of bristles rigidly attached to said bristle-retaining means also in a manner for movement exclusively in a longitudinal direction with respect to said body upon said reciprocating motion of said bristle-retaining means, so that said bristle-retaining means may remain in a substantially fixed position and said plurality of bristles may remain in a substantionally fixed transverse position upon the longitudinal reciprocation of said toothbrush body but are carried by said toothbrush body upon its transverse reciprocation.
Claim 2
Dependent Claim
154 words
A toothbrush comprising a body, including a handle portion and a brush head portion, bristle-retaining means slidably attached to said brush head portion of said body for permitting reciprocating motion of said bristle-retaining means exclusively in a longitudinal direction with respect to said body, means for restricting the longitudinal motion of said bristle-retaining means between fixed points on said brush head portion of said body, said bristle-retaining means being freely slidably between said fixed points, and a plurality of bristles rigidly attached to said bristle-retaining means also in a manner for movement exclusively in a longitudinal direction with respect to said body upon said reciprocating motion of said bristle-retaining means, so that said bristle-retaining means may remain in a substantially fixed position and said plurality of bristles may remain in a substantionally fixed transverse position upon the longitudinal reciprocation of said toothbrush body but are carried by said toothbrush body upon its transverse reciprocation.
Claim 3
Dependent Claim
26 words
The toothbrush of claim 1 wherein said brush head portion of said body includes a recessed portion, and said bristle-retaining means is located within said recess.
Claim 4
Dependent Claim
27 words
The toothbrush of claim 1 wherein said bristle-retaining means includes groove means slidably engaged to track means extending longitudinally along said brush head portion of said body.
Claim 5
Dependent Claim
38 words
The toothbrush of claim 1 wherein said bristle retaining means comprises an annular collar surrounding said brush head portion of said body, said collar having an inner surface generally conforming with said brush head portion of said body.
Claim 6
Dependent Claim
27 words
The toothbrush of claim 1 including friction means for preventing longitudinal motion of said bristle-retaining means upon transverse motion of said brush head portion of said body.
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) | 1978-04-28 | 1978-10-28 | 1979-04-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-04-28 | 1982-10-28 | 1983-04-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-04-28 | 1986-10-28 | 1987-04-29 | $7700.00 | Window Closed / Lapsed |