US5259759A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Temporary cylinder
Assignee: Nobel Biocare AB
•
Filing: 1992-03-27
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Granted: 1993-11-09
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Expires: 2012-03-27
Abstract
Abstract The invention relates to a cylinder 1 designed to be inserted in a temporary, implant-supported dental bridge/dental prosthesis, a so-called temporary cylinder, and which comprises an upper part 2 which is surrounded by the dental bridge/dental prosthesis and a base section 4 for connection to the spacer element 6 of the implant. The cylinder is made of a polymer material and the upper part 2 has a conical outer contour.
Inventors
- 👤 Lars Jorneus
- 👤 Stefan Edgren
- 👤 Thomas Svensson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 00:15
CPC Classifications
A; A61; A61C; A61C8/00; A61C8/0048
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
82 words
A cylinder for use in a temporary, implant-supported dental bridge/dental prosthesis, said cylinder comprising: a cylinder member made of a polymer material and including an upper part which is surrounded by the dental bridge/dental prosthesis, said upper part having a conical outer contour provided with retaining means for increased retention against the surrounding dental bridge/dental prosthesis, said conical upper part also including a cylindrical top portion, and a base section for connection of the cylinder to a spacer element of the implant.
Claim 2
Dependent Claim
82 words
A cylinder for use in a temporary, implant-supported dental bridge/dental prosthesis, said cylinder comprising: a cylinder member made of a polymer material and including an upper part which is surrounded by the dental bridge/dental prosthesis, said upper part having a conical outer contour provided with retaining means for increased retention against the surrounding dental bridge/dental prosthesis, said conical upper part also including a cylindrical top portion, and a base section for connection of the cylinder to a spacer element of the implant.
Claim 3
Dependent Claim
15 words
A cylinder according to claim 1 wherein said retaining means includes a plurality of grooves.
Claim 4
Dependent Claim
24 words
A cylinder according to claim 2 wherein an upper groove of said plurality of grooves defines a cutting mark for shortening the cylinder member.
Claim 5
Dependent Claim
46 words
A cylinder according to claim 1 wherein the conical upper part merges into said base section through an annular shoulder, and wherein said base section also has a conical outer contour which, is tapered downwards in order to fit the outer contour of the spacer element.
Claim 6
Dependent Claim
25 words
A cylinder according to claim 1 wherein said cylindrical top portion has substantially the same length as the conical upper part of the cylinder member.
Claim 7
Dependent Claim
76 words
A cylinder assembly for use in a temporary, implant-supported dental bridge/dental prosthesis, said cylinder comprising: a cylinder member made of a polymer material and including an upper part to be surrounded by the dental bridge/dental prosthesis, and having a conical outer contour, and an outer sleeve insertable on said cylinder and designed to fit with a suitable play to allow accommodation of any dimensional change during the casting process or during polymerization of the bridge framework.
Claim 8
Dependent Claim
76 words
A cylinder assembly for use in a temporary, implant-supported dental bridge/dental prosthesis, said cylinder comprising: a cylinder member made of a polymer material and including an upper part to be surrounded by the dental bridge/dental prosthesis, and having a conical outer contour, and an outer sleeve insertable on said cylinder and designed to fit with a suitable play to allow accommodation of any dimensional change during the casting process or during polymerization of the bridge framework.
Claim 9
Dependent Claim
17 words
A cylinder assembly according to claim 6 wherein said outer sleeve is made of a burn-out resin.
Claim 10
Dependent Claim
25 words
A cylinder assembly according to claim 6 wherein said outer sleeve includes a base section which bears against an annular shoulder of said cylinder member.
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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) | 1996-11-08 | 1997-05-10 | 1997-11-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-11-08 | 2001-05-10 | 2001-11-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-11-08 | 2005-05-10 | 2005-11-09 | $7700.00 | Window Closed / Lapsed |