Patent US5355547A successfully refreshed from Google Patents.
US5355547A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dental cleaning brush
Assignee: Georg Karl Geka Brush GmbH
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Filing: 1993-02-25
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Granted: 1994-10-18
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Expires: 2013-02-25
Abstract
Abstract A dental cleaning brush, in particular an interdental brush, comprising a plurality of fiber portions retained between two twisted wire sections and extending away from the latter, has at least a certain part of the fiber portions formed such that they extend approximately in the longitudinal direction of the wire sections or the brush core, respectively, in order that painful galvanic effects during the use be avoided.
Inventors
- 👤 Holger Fitjer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 10:48
CPC Classifications
A; A46; A46B; A46B7/00; A46B7/04; A46B3/00; A46B3/18; A46B2200/00; A46B2200/10; A46B2200/1066; A46B2200/108
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
129 words
An interdental brush, comprising a plurality of fiber portions retained between two twisted wire sections and extending away from the latter, wherein the diameter of the wire sections (1,2) is in the range of 0.1 to 0.25 mm, wherein each individual fiber portion 96) consists of a plurality of fiber-segment portions (9), the fiber-segment portions (9) extending away from where they are retained between the wire sections (1,2) while fanning out in tufts, and part of the fiber portions (9) also extending approximately in the longitudinal direction of the wire sections (1,2), and wherein only the fiber-segment portions (9) are glued together where they are retained between the wire sections (1,2) by means of a glue (10) soluble in a solvent that does not attack the fiber-segment portions (9).
Claim 2
Dependent Claim
129 words
An interdental brush, comprising a plurality of fiber portions retained between two twisted wire sections and extending away from the latter, wherein the diameter of the wire sections (1,2) is in the range of 0.1 to 0.25 mm, wherein each individual fiber portion 96) consists of a plurality of fiber-segment portions (9), the fiber-segment portions (9) extending away from where they are retained between the wire sections (1,2) while fanning out in tufts, and part of the fiber portions (9) also extending approximately in the longitudinal direction of the wire sections (1,2), and wherein only the fiber-segment portions (9) are glued together where they are retained between the wire sections (1,2) by means of a glue (10) soluble in a solvent that does not attack the fiber-segment portions (9).
Claim 3
Dependent Claim
27 words
A dental cleaning brush according to claim 1, wherein the fiber-free end (7) of the wire sections (1,2) is bent over to form a securing eye (8).
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1997-10-17 | 1998-04-18 | 1998-10-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-10-17 | 2002-04-18 | 2002-10-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-10-17 | 2006-04-18 | 2006-10-18 | $7700.00 | Window Closed / Lapsed |