Patent US5139420A successfully refreshed from Google Patents.
US5139420A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dental mirror system
Assignee: Individual
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Filing: 1990-09-04
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Granted: 1992-08-18
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Expires: 2010-09-04
Abstract
Abstract The present invention is directed to a dental mirror system having a fluid conduit to provide a stream of fluid across the surface of the mirror to remove material from the mirror surface. The dental mirror system can also be provided with a light-transmitting cable to illuminate the work area and/or a suction conduit to remove material from the mouth of the patient.
Inventors
- 👤 William S. Walker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 10:23
CPC Classifications
A; A61; A61B; A61B1/00; A61B1/24; A61B1/247; A61B1/253; A61C; A61C17/00; A61C17/02; A61C17/0202; A61C17/0208; A61C17/06; A61C17/08; A61C17/084; A61C17/088
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
217 words
A dental mirror system comprising: (a) an elongated arm defining an axis and having a distal end; (b) a mirror angularly secured to the distal end and having a reflective surface, associated with a viewing field, disposed at an obtuse angle relative to the axis of said elongated arm; (c) a fluid conduit extending along the length of said elongated arm and defining an orifice adjacent to the reflective surface of the mirror to provide a fluid stream across the reflective surface; (d) a light-transmitting cable extending along the length of said elongated arm in parallel relationship to said fluid conduit and having light-transmitting means adjacent to the reflective surface of the mirror and disposed to guide light in a direction incident to the reflective surface to illuminate the viewing field; and (e) a suction conduit extending along the length of said elongated arm in substantially parallel relationship to said fluid conduit and said light-transmitting cable, said suction conduit defining a suction opening adjacent to a surface of said mirror opposed to the reflective surface thereof so that activation of suction through said suction conduit can remove material from the mouth of a patient; said light-transmitting cable being slidingly received by said elongated arm and having said light-transmitting means adjacent to the reflective surface of the mirror.
Claim 2
Dependent Claim
217 words
A dental mirror system comprising: (a) an elongated arm defining an axis and having a distal end; (b) a mirror angularly secured to the distal end and having a reflective surface, associated with a viewing field, disposed at an obtuse angle relative to the axis of said elongated arm; (c) a fluid conduit extending along the length of said elongated arm and defining an orifice adjacent to the reflective surface of the mirror to provide a fluid stream across the reflective surface; (d) a light-transmitting cable extending along the length of said elongated arm in parallel relationship to said fluid conduit and having light-transmitting means adjacent to the reflective surface of the mirror and disposed to guide light in a direction incident to the reflective surface to illuminate the viewing field; and (e) a suction conduit extending along the length of said elongated arm in substantially parallel relationship to said fluid conduit and said light-transmitting cable, said suction conduit defining a suction opening adjacent to a surface of said mirror opposed to the reflective surface thereof so that activation of suction through said suction conduit can remove material from the mouth of a patient; said light-transmitting cable being slidingly received by said elongated arm and having said light-transmitting means adjacent to the reflective surface of the mirror.
References Cited (Backward Citations)
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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) | 1995-08-18 | 1996-02-17 | 1996-08-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-08-18 | 2000-02-17 | 2000-08-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-08-18 | 2004-02-17 | 2004-08-18 | $7700.00 | Window Closed / Lapsed |