Patent US4462136A successfully refreshed from Google Patents.
US4462136A
Expired / Lapsed
US
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Dental implement for removing plaque and massaging gums
Assignee: TOKYO BOSHI A CORP OF JAPAN KK
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Filing: 1981-11-09
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Granted: 1984-07-31
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Expires: 2001-11-09
Abstract
Abstract An implement for removing dental plaque and massaging gums in a form of a slender rod-like body of appropriate length comprising a fibrous structure obtained by bundling or bundling and bonding a plurality of fibers such as synthetic fibers in a longitudinal direction and a shell layer on the outer peripheral section of the fibrous structure, the shell layer is partly cut or ground to expose the fibrous layer in the interior thereof to form a brushing section, the fibrous layer may contain such as hygienically harmless alkali substances, surfactant, bactericide, deodorant, perfumes or the like.
Inventors
- 👤 Shunichi Nakao
- 👤 Motonori Yamauchi
- 👤 Churyo Suzuki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 06:09
CPC Classifications
A; A46; A46B; A46B3/00; A46B9/00; A46B9/02; A46B9/04; A61; A61C; A61C15/00; A61C15/02; A61C15/04; A61C15/041; A46B2200/00; A46B2200/10; A46B2200/1066
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
109 words
A dental implement for removing plaque and massaging gums, which comprises a slender rod-like body in the form of a toothpick having an inner fibrous structure formed of a plurality of fibers arranged in a longitudinal direction, and an elongated shell layer consisting essentially of a thermally melt-adhered thermoplastic resin surrounding and in direct contact with said inner fibrous structure and having a greater physical strength as compared with that of said inner fibrous structure, said shell layer being partly cut or ground down so as to terminate remote from an end of said inner fibrous structure to expose said fibrous structure and thus to provide a brushing section.
Claim 2
Dependent Claim
109 words
A dental implement for removing plaque and massaging gums, which comprises a slender rod-like body in the form of a toothpick having an inner fibrous structure formed of a plurality of fibers arranged in a longitudinal direction, and an elongated shell layer consisting essentially of a thermally melt-adhered thermoplastic resin surrounding and in direct contact with said inner fibrous structure and having a greater physical strength as compared with that of said inner fibrous structure, said shell layer being partly cut or ground down so as to terminate remote from an end of said inner fibrous structure to expose said fibrous structure and thus to provide a brushing section.
Claim 3
Dependent Claim
22 words
A dental implement for removing plaque and massaging gums as described in claim 1, characterized in that said shell layer is tubular.
Claim 4
Dependent Claim
29 words
A dental implement for removing plaque and massaging gums as described in claim 1, characterized in that the fibrous structure of the brushing section is formed from synthetic fibers.
Claim 5
Dependent Claim
31 words
A dental implement for removing plaque as described in claim 2, characterized in that the fibrous structure of the brushing section is formed from inorganic high molecular fibers or metal fibers.
Claim 6
Dependent Claim
37 words
A dental implement for removing plaque and massaging gums as described in claim 1, characterized in that the fibrous structure contains one or more kinds of hygienically harmless alkali substances, surfactant, bactericide, deodorant, perfume or the like.
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) | 1987-07-31 | 1988-01-30 | 1988-07-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-07-31 | 1992-01-30 | 1992-07-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-07-31 | 1996-01-30 | 1996-07-31 | $7700.00 | Window Closed / Lapsed |