Dental apparatus
Abstract
Abstract A DENTAL APPARATUS OR JIG FOR USE IN MAKING DENTAL RESTORATIONS. THERE IS SUPPORT MEANS HAVING THREE PARTS FOR CLAMPING A DENTAL TRAY OR IMPRESSION HOLDER IN POSITION AND FOR THE VERTICAL RODS OF DOWEL PIN HOLDERS AND SUPPORT MEANS. EACH DOWEL PIN HOLDER AND SUPPORT MEANS COMPRISES AN ASSEMBLY OF A TUBULAR MEMBER HELD IN A HORIZONTAL POSITION BY A VERTICALLY ADJUSTABLE ROD, AND A CORE SECURED IN THE TUBULAR MEMBER, A FREE END OF THE CORE EXTENDING OUTWARDLY BEYOND THE INNER END OF THE TUBULAR MEMBER AND SAID FREE END IS TURNED DOWNWARDLY, THERE BEING A DOWEL PIN CLAMP SECURED TO THE LOWER END OF THE DOWN-TURNED FREE END PORTION FOR RELEASABLY HOLDING A DOWEL PIN. THE EXPOSED FREE END PORTION OF THE CORE IS PLAINT AND IS EASILY BENT TO HOLD A DOWEL PIN AT A SELECTED OR REQUIRED POSITION OR ANGLE. D R A W I N G
Inventors
- 👤 D Charron
Bibliographic Details
Claims Analysis
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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) | 1976-02-27 | 1976-08-28 | 1977-02-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-02-27 | 1980-08-28 | 1981-02-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-02-27 | 1984-08-28 | 1985-02-27 | $7700.00 | Window Closed / Lapsed |