US4221015A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tooth-cleaning device
Assignee: Individual
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Filing: 1979-03-13
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Granted: 1980-09-09
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Expires: 1999-03-13
Abstract
Abstract A tooth cleaning device comprises a biting bit of an elastically yieldable cellular material and has a slit or groove obtained by means of cutting tools, so that the opposing walls of the slit or groove will act as scrubbing means when a person is chewing with his teeth in the slit or groove.
Inventors
- 👤 Bror A. E. Andersson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:22
CPC Classifications
A; A61; A61C; A61C17/00
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
152 words
A tooth-cleaning device with a biting bit having two opposing side walls to receive therebetween a plurality of teeth while biting the teeth together over the biting bit, the device comprising a head and a transverse handle projecting from one side of the head, the head and handle being integral with each other and both being of resilient cellular material, tooth-receiving grooves extending lengthwise of the head on opposite sides of the head, the cross-sectional configuration of the grooves widening toward the bottom of the grooves, the side walls of the grooves being lined with cut-through cells of the cellular material of the head thereby to provide a multiplicity of cleaning surfaces on the side walls of each groove, and a plurality of transverse slits crossing the grooves and dividing the opposite walls of each groove into a number of individually flexible portions so as to facilitate adjustment to the individual teeth.
Claim 2
Dependent Claim
152 words
A tooth-cleaning device with a biting bit having two opposing side walls to receive therebetween a plurality of teeth while biting the teeth together over the biting bit, the device comprising a head and a transverse handle projecting from one side of the head, the head and handle being integral with each other and both being of resilient cellular material, tooth-receiving grooves extending lengthwise of the head on opposite sides of the head, the cross-sectional configuration of the grooves widening toward the bottom of the grooves, the side walls of the grooves being lined with cut-through cells of the cellular material of the head thereby to provide a multiplicity of cleaning surfaces on the side walls of each groove, and a plurality of transverse slits crossing the grooves and dividing the opposite walls of each groove into a number of individually flexible portions so as to facilitate adjustment to the individual teeth.
Claim 3
Dependent Claim
36 words
A device as claimed in claim 1, the handle being located at one end only of the head and extending from the head in a direction perpendicular to a plane that includes both of the grooves.
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) | 1983-09-09 | 1984-03-10 | 1984-09-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-09-09 | 1988-03-10 | 1988-09-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-09-09 | 1992-03-10 | 1992-09-09 | $7700.00 | Window Closed / Lapsed |