US3769652A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Chewing toothbrush
Assignee: Individual
•
Filing: 1971-11-30
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Granted: 1973-11-06
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Expires: 1991-11-30
Abstract
Abstract A chewing toothbrush comprising a handle having an arcuately shaped portion of resilient material at one end thereof, which is of a size and shape to conform to the line of teeth of the user when the latter bites down onto the same. The said arcuate portion has upstanding flanges on its edges, which extend generally parallel to the lateral surfaces of the teeth, and projecting from said flanges toward the tooth surfaces are short bristles of soft, elastomeric material, which scrub the surfaces and interstices of the teeth as the user chews on the device.
Inventors
- 👤 C Rainer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 01:22
CPC Classifications
A; A46; A46B; A46B9/00; A46B9/02; A46B9/04; A46B9/045; A46B2200/00; A46B2200/10; A46B2200/1066
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
165 words
A chewing toothbrush comprising a generally horseshoe-shaped mouthpiece having a handle projecting therefrom, said mouthpiece being made of a resilient, elastomeric material which is readily bendable to conform to the configuration of the curved line of teeth when bitten upon; said mouthpiece having a horizontal web portion extending between the opposed biting surfaces of the upper and lower teeth, and two laterally spaced, vertical flange portions extending perpendicular to said horizontal web along the inner and outer edges of the latter, said vertical flanges and said horIzontal web cooperating to form upper and lower channels into which the upper and lower teeth are received when the mouthpiece is bitten down onto, the inner surfaces of said channels having a plurality of bristles protruding therefrom toward the corresponding surfaces of the teeth; and a portion of said horizontal web being removed to form an open slot through which certain of the teeth can pass in order that their opposed biting surfaces may abut against one another.
Claim 2
Dependent Claim
165 words
A chewing toothbrush comprising a generally horseshoe-shaped mouthpiece having a handle projecting therefrom, said mouthpiece being made of a resilient, elastomeric material which is readily bendable to conform to the configuration of the curved line of teeth when bitten upon; said mouthpiece having a horizontal web portion extending between the opposed biting surfaces of the upper and lower teeth, and two laterally spaced, vertical flange portions extending perpendicular to said horizontal web along the inner and outer edges of the latter, said vertical flanges and said horIzontal web cooperating to form upper and lower channels into which the upper and lower teeth are received when the mouthpiece is bitten down onto, the inner surfaces of said channels having a plurality of bristles protruding therefrom toward the corresponding surfaces of the teeth; and a portion of said horizontal web being removed to form an open slot through which certain of the teeth can pass in order that their opposed biting surfaces may abut against one another.
Claim 3
Dependent Claim
56 words
A chewing toothbrush as in claim 1 wherein said open slot in the web portion is provided at the middle of the horseshoe-shaped mouthpiece to form a lengthwise extending slot therein, through which the front teeth of the user protrude to close their biting surfaces together when the moutpiece is bitten down onto by the user.
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) | 1976-11-05 | 1977-05-07 | 1977-11-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-11-05 | 1981-05-07 | 1981-11-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-11-05 | 1985-05-07 | 1985-11-06 | $7700.00 | Window Closed / Lapsed |