Patent US4758161A successfully refreshed from Google Patents.
US4758161A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coping insert for use with a dental implant
Assignee: Core Vent Corp
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Filing: 1987-01-28
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Granted: 1988-07-19
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Expires: 2007-01-28
Abstract
Abstract A thermoplastic, one-piece coping insert adapted for use with a dental implant anchoring means includes a shaft that fits into an opening in a dental implant, an abutment head joined to the shaft and adapted to conform to, and fit smoothly on, or in the top surface of the dental implant, a bendable restriction or groove to facilitate preferential bending of the insert at the restriction when the insert is heated to the softening temperature of a thermoplastic, and a relatively unbendable post atop the restriction for receiving and supporting a dental prosthesis such as one or more prosthetic teeth.
Inventors
- 👤 Gerald A. Niznick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:20
CPC Classifications
A; A61; A61C; A61C8/00; A61C8/0048; A61C8/005; A61C8/0053; A61C8/0001
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
126 words
A coping insert made of thermoplastic material, and adapted for use with an endosseous dental implant anchoring means comprising a shaft means adapted for insertion into a passage in said endosseous dental implant anchoring means; abutment head means atop, and joined to said shaft means, said abutment head means being adapted to conform to the top surface of said endosseous dental implant anchoring means; restriction means atop and joined to said abutment head means, said restriction means comprising a region of reduced cross-section having a size and shape sufficient to facilitate perferential bending at said restriction means when said coping insert is heated to the softening temperature of the thermoplastic; and atop, and joined to said restriction means, means for engaging and supporting dental prosthesis means.
Claim 2
Dependent Claim
126 words
A coping insert made of thermoplastic material, and adapted for use with an endosseous dental implant anchoring means comprising a shaft means adapted for insertion into a passage in said endosseous dental implant anchoring means; abutment head means atop, and joined to said shaft means, said abutment head means being adapted to conform to the top surface of said endosseous dental implant anchoring means; restriction means atop and joined to said abutment head means, said restriction means comprising a region of reduced cross-section having a size and shape sufficient to facilitate perferential bending at said restriction means when said coping insert is heated to the softening temperature of the thermoplastic; and atop, and joined to said restriction means, means for engaging and supporting dental prosthesis means.
Claim 3
Dependent Claim
38 words
The insert of claim 1 wherein said shaft means includes at least one groove means for facilitating removal of the portion of the shaft means below said groove means by severing said shaft means through said groove means.
Claim 4
Dependent Claim
23 words
The insert of claim 1 further comprising means on said engaging/supporting means for facilitating severing, as desired, portions of said engaging/supporting means therefrom.
Claim 5
Dependent Claim
18 words
The insert of claim 1 wherein said restriction means comprises a circumferential groove having a rounded, concave profile.
Claim 6
Dependent Claim
133 words
A one-piece, thermoplastic coping insert adapted for use with an endosseous dental implant anchoring means comprising shaft means adapted for insertion into a passage in said endosseous dental implant anchoring means; abutment head means integrally joined to said shaft means, said abutment head means being adapted to conform to, and to abut the top surface of said endosseous dental implant anchoring means; means for engaging and supporting dental prosthesis means; and restriction means comprising a region of reduced cross-section linking the upper end of said abutment head means to the lower end of said engaging/supporting means, said restriction means being adapted to bend when said insert is heated to the softening temperature of the thermoplastic from which said insert is made without bending or distorting said abutment head means or said engaging/supporting means.
Claim 7
Dependent Claim
133 words
A one-piece, thermoplastic coping insert adapted for use with an endosseous dental implant anchoring means comprising shaft means adapted for insertion into a passage in said endosseous dental implant anchoring means; abutment head means integrally joined to said shaft means, said abutment head means being adapted to conform to, and to abut the top surface of said endosseous dental implant anchoring means; means for engaging and supporting dental prosthesis means; and restriction means comprising a region of reduced cross-section linking the upper end of said abutment head means to the lower end of said engaging/supporting means, said restriction means being adapted to bend when said insert is heated to the softening temperature of the thermoplastic from which said insert is made without bending or distorting said abutment head means or said engaging/supporting means.
Claim 8
Dependent Claim
38 words
The insert of claim 5 wherein said shaft means includes at least one groove means for facilitating removal of the portion of the shaft means below said groove means by severing said shaft means through said groove means.
Claim 9
Dependent Claim
23 words
The insert of claim 5 further comprising means on said engaging/supporting means for facilitatng severing, as desired, portions of said engaging/supporting means therefrom.
Claim 10
Dependent Claim
18 words
The insert of claim 5 wherein said restriction means comprises a circumferential groove having a rounded, concave profile.
Claim 11
Dependent Claim
98 words
A coping insert made of thermoplastic material, and adapted for use with an endosseous dental implant anchoring means comprising shaft means adapted for insertion into a passage in said endosseous dental implant anchoring means; abutment head means atop, and joined to said shaft means, said abutment means being adapted to conform to the top surface of said endosseous dental implant anchoring means; and atop, and joined to said abutment head means, a means for engaging and supporting dental prosthesis means whereby said insert, when heated to the softening point of the thermoplastic material, can be bent as desired.
Claim 12
Dependent Claim
98 words
A coping insert made of thermoplastic material, and adapted for use with an endosseous dental implant anchoring means comprising shaft means adapted for insertion into a passage in said endosseous dental implant anchoring means; abutment head means atop, and joined to said shaft means, said abutment means being adapted to conform to the top surface of said endosseous dental implant anchoring means; and atop, and joined to said abutment head means, a means for engaging and supporting dental prosthesis means whereby said insert, when heated to the softening point of the thermoplastic material, can be bent as desired.
Claim 13
Dependent Claim
31 words
The insert of claim 9 wherein said shaft means has at least two portions of different diameter adapted to fit into a complementary passage in said endosseous dental implant anchoring means.
Claim 14
Dependent Claim
31 words
The insert of claim 1 wherein said shaft means has at least two portions of different diameter adapted to fit into a complementary passage in said endosseous dental implant anchoring means.
Claim 15
Dependent Claim
31 words
The insert of claim 5 wherein said shaft means has at least two portions of different diameter adapted to fit into a complementary passage in said endosseous dental implant anchoring means.
Claim 16
Dependent Claim
88 words
A coping insert made of thermoplastic material, and adapted for use with endosseous dental implant anchoring means comprising shaft means having at least two portions of different diameter adapted to fit into a complementary passage in said endosseous dental implant anchoring means; abutment head means atop, and joined to said shaft means, said abutment means being adapted to conform: to the top surface of said endosseous dental implant anchoring means, whereby said insert, when heated to the softening point of the termoplastic material, can be bent as desired.
Claim 17
Dependent Claim
88 words
A coping insert made of thermoplastic material, and adapted for use with endosseous dental implant anchoring means comprising shaft means having at least two portions of different diameter adapted to fit into a complementary passage in said endosseous dental implant anchoring means; abutment head means atop, and joined to said shaft means, said abutment means being adapted to conform: to the top surface of said endosseous dental implant anchoring means, whereby said insert, when heated to the softening point of the termoplastic material, can be bent as desired.
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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) | 1991-07-19 | 1992-01-18 | 1992-07-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-07-19 | 1996-01-18 | 1996-07-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-07-19 | 2000-01-18 | 2000-07-19 | $7700.00 | Window Closed / Lapsed |