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US3691585A Expired / Lapsed US ⏱️ 0.0 years remaining

Single-use toothbrush

Assignee: Individual
•
Filing: 1970-12-28
•
Granted: 1972-09-19
•
Expires: 1990-12-28
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Abstract

Abstract A single-use toothbrush of molded plastic material, composed of a plurality of cylindrical clusters of bristles integrally molded with the body of the toothbrush and coated with a thin layer of dentifrice composition which is sprayed onto the bristles in an amount adequate for a single brushing only. Each cluster is composed of four bristles of approximately triangular section and is formed by bristles projecting from a cylindrical base of small depth which is bisected by a pair of rectangularly displaced diametral slots which define the inner surfaces of the bristles while the lateral surfaces of the latter are coincident with the periphery of the base. The size of the clusters and their spacing from each other impart an optimum degree of flexibility to the bristles.

Inventors

  • 👤 Charles Flom

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-03 00:05
CPC Classifications
A; A46; A46B; A46B1/00; A61; A61H; A61H13/00

Claims Analysis

Total Claims: 1
Claim 1
Independent Claim 41 words
A device as set forth in claim 1, wherein said dentifrice material sprayed onto said bristles is of an amount sufficient for a single brushing operation only, and contains detergent, abrasive and preservative ingredients, as well as wetting and flavoring agents.

References Cited (Backward Citations)

US2673364A Cited
US3103935A Cited
US3133546A Cited
US3231925A Cited
US3589823A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1975-09-19 1976-03-20 1976-09-19 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1979-09-19 1980-03-20 1980-09-19 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1983-09-19 1984-03-20 1984-09-19 $7700.00 Window Closed / Lapsed

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