Patent US3954115A successfully refreshed from Google Patents.
US3954115A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combined tooth pick and tooth cleaning implement
Assignee: Individual
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Filing: 1975-09-22
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Granted: 1976-05-04
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Expires: 1995-09-22
Abstract
Abstract For dental hygiene an implement is provided, which can pick interproximal spaces, as well as scrape the tartar off teeth faces. The implement is made of resilient material, is small, handy and inconspicuous. An instrument according to the invention comprises a cleaning portion having a channel shaped cross section tapering into a point, as well as a picking portion formed unitary therewith, so each portion can serve as a handle for the other portion. The side faces of both portions are partly roughened in order to provide an abrading surface.
Inventors
- 👤 Sigurd Walter Bengtsson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 20:32
CPC Classifications
A; A61; A61C; A61C15/00; A61C15/02
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
113 words
A combined tooth pick and tooth cleaning implement made of resilient synthetic resin material, comprising: a. a cleaning portion having two side walls merging into a ridge and defining a channel-shaped cross-section tapering into a first tip, the open side of the channel extending straight toward said first tip, and said ridge tapering into said first tip; and b. a picking portion having a solid cross-section merging at its base directly into said cleaning portion and having a tapering contour extending to a second tip, said picking portion being a planar leaf-like elongation of said open side, and said base being substantially equal in size to the greatest breadth of said cleaning portion.
Claim 2
Dependent Claim
113 words
A combined tooth pick and tooth cleaning implement made of resilient synthetic resin material, comprising: a. a cleaning portion having two side walls merging into a ridge and defining a channel-shaped cross-section tapering into a first tip, the open side of the channel extending straight toward said first tip, and said ridge tapering into said first tip; and b. a picking portion having a solid cross-section merging at its base directly into said cleaning portion and having a tapering contour extending to a second tip, said picking portion being a planar leaf-like elongation of said open side, and said base being substantially equal in size to the greatest breadth of said cleaning portion.
Claim 3
Dependent Claim
52 words
A combined tooth pick and tooth cleaning implement according to claim 1, in which the length of said picking portion is less than one-half of the total length of the implement, its side faces being roughened at least over a substantial part of its extent from said base toward said second tip.
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) | 1979-05-04 | 1979-11-03 | 1980-05-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-05-04 | 1983-11-03 | 1984-05-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-05-04 | 1987-11-03 | 1988-05-04 | $7700.00 | Window Closed / Lapsed |