US4997382A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Prosthesis handling system
Assignee: Belle de St Claire Inc
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Filing: 1987-01-12
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Granted: 1991-03-05
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Expires: 2007-01-12
Abstract
Abstract Handle is formed with the metal portion of a dental prosthesis so that the handle can be used for supporting and handling the metal structure from the mold to the final finishing, when the handle is cut off. The handle preferably has both a ring for supporting the structure on a post and a ball for grasping of the metal structure.
Inventors
- 👤 Robert P. Berger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 03:43
CPC Classifications
A; A61; A61C; A61C19/00; A61C19/10
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
67 words
A prosthesis handling system comprising: an investment cast metal dental prosthesis structure; metal handle means attached to said cast metal dental prosthesis structure for handling and supporting said cast metal dental prosthesis structure, said handle having a ball of substantially spherical configuration thereon and a ring on said support means in addition to said ball for engagement by a support for supporting the metal dental prosthesis structure.
Claim 2
Dependent Claim
67 words
A prosthesis handling system comprising: an investment cast metal dental prosthesis structure; metal handle means attached to said cast metal dental prosthesis structure for handling and supporting said cast metal dental prosthesis structure, said handle having a ball of substantially spherical configuration thereon and a ring on said support means in addition to said ball for engagement by a support for supporting the metal dental prosthesis structure.
Claim 3
Dependent Claim
23 words
The prosthesis handling system of claim 1 wherein said ring is attached adjacent said prosthesis and said ball is attached to said ring.
Claim 4
Dependent Claim
44 words
The prosthesis handling system of claim 2 wherein said ball is positioned sufficiently away from said ring so that a manually operable instrument having jaws with cavities therein can engage on said ball for handling said prosthesis without covering the opening in said ring.
Claim 5
Dependent Claim
47 words
A prosthesis handling system comprising: a wax master handle for attachment to a wax master prosthesis for investment, said handle having a ball thereon for engagement by ball engaging means for support of the prosthesis; and a ring on said handle for engagement by a support pin.
Claim 6
Dependent Claim
47 words
A prosthesis handling system comprising: a wax master handle for attachment to a wax master prosthesis for investment, said handle having a ball thereon for engagement by ball engaging means for support of the prosthesis; and a ring on said handle for engagement by a support pin.
Claim 7
Dependent Claim
30 words
The prosthesis handling system of claim 4 wherein said ball is mounted on said ring and said ring is mounted on a neck for attachment to the wax master prosthesis.
Claim 8
Dependent Claim
40 words
The prosthesis handling system of claim 5 wherein there is a manually operable instrument for engaging said ball, said instrument being shaped so that when said instrument engages said ball said instrument does not overlap the opening in said ring.
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) | 1994-03-04 | 1994-09-03 | 1995-03-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-03-04 | 1998-09-03 | 1999-03-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-03-04 | 2002-09-03 | 2003-03-05 | $7700.00 | Window Closed / Lapsed |