Patent US5002489A successfully refreshed from Google Patents.
US5002489A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dental prosthesis
Assignee: Fischerwerke Artur Fischer GmbH and Co KG
•
Filing: 1989-01-23
•
Granted: 1991-03-26
•
Expires: 2009-01-23
Abstract
Abstract A dental prosthesis comprises an element fixed in a mouth, a removable dental porsthesis component placed on the element, and a removable connection of the dental prosthesis component with the element and including vertical groove formed in an adjacent surface in each of the element and the component, the grooves being located immediately opposite to one another and open into one another, the connection further including a resilient friction element engaging in the grooves.
Inventors
- 👤 Artur Fischer
- 👤 H. Weber
- 👤 Gunter Rubeling
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 02:16
CPC Classifications
A; A61; A61C; A61C13/00; A61C13/225; A61C13/273
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
96 words
A dental prosthesis, comprising an element fixed in a mouth; a removable dental prosthesis component placed on said element; and means for removably connecting said dental prosthesis component with said element and including vertical grooves formed in an adjacent surface in each of said element and said component, said grooves being located immediately opposite to one another and open into one another, said means further including a resilient friction element engaging in said grooves, said groove in said removable dental prosthesis having a length which is greater than the length of said groove in said element.
Claim 2
Dependent Claim
96 words
A dental prosthesis, comprising an element fixed in a mouth; a removable dental prosthesis component placed on said element; and means for removably connecting said dental prosthesis component with said element and including vertical grooves formed in an adjacent surface in each of said element and said component, said grooves being located immediately opposite to one another and open into one another, said means further including a resilient friction element engaging in said grooves, said groove in said removable dental prosthesis having a length which is greater than the length of said groove in said element.
Claim 3
Dependent Claim
19 words
A dental prosthesis as defined in claim 1, wherein said element fixed in a mouth is a telescope crown.
Claim 4
Dependent Claim
18 words
A dental prosthesis as defined in claim 1, wherein said element fixed in a mouth is a bridge.
Claim 5
Dependent Claim
17 words
A dental prosthesis as defined in claim 1, wherein said dental prosthesis component is a removable crown.
Claim 6
Dependent Claim
32 words
A dental prosthesis as defined in claim 1, wherein said removable dental prosthesis component includes a push-fit member, said grooves being formed in adjacent surfaces of said element and said push-fit member.
Claim 7
Dependent Claim
19 words
A dental prosthesis as defined in claim 1, wherein said profile pin is formed as a polyamide profile pin.
Claim 8
Dependent Claim
19 words
A dental prosthesis as defined in claim 1, wherein said grooves of said means have cross-sections with different shapes.
Claim 9
Dependent Claim
19 words
A dental prosthesis as defined in claim 1, wherein said grooves of said means have cross-sections with identical shapes.
Claim 10
Dependent Claim
15 words
A dental prosthesis as defined in claim 1, wherein said grooves have a trapezoidal cross-section.
Claim 11
Dependent Claim
15 words
A dental prosthesis as defined in claim 1, wherein said grooves have a triangular cross-section.
Claim 12
Dependent Claim
15 words
A dental prosthesis as defined in claim 1, wherein said grooves have a semi-circular cross-section.
Claim 13
Dependent Claim
15 words
A dental prosthesis as defined in claim 1, wherein said grooves have a swallow-tailed cross-section.
Claim 14
Dependent Claim
31 words
A dental prosthesis as defined in claim 1, wherein said groove in said removable dental prosthesis has a length which is greater than a length of said groove in said element.
Claim 15
Dependent Claim
59 words
A dental prosthesis as defined in claim 1; and further comprising a push-fit member formed as a square block and a corresponding recess in said removable dental prosthesis component fitting around said block, said grooves being formed in walls of said block and said dental prosthesis component, said block and said recess having adjacent surfaces provided with said grooves.
Claim 16
Dependent Claim
47 words
A dental prosthesis as defined in claim 1; and further comprising a block formed integrally with said removable dental prosthesis component and a push-fit member provided with a square recess in which said block engages, said block and said recess having adjacent surfaces provided with said grooves.
Claim 17
Dependent Claim
17 words
A dental prosthesis as defined in claim 1, wherein said element is formed as a horizontal bar.
Claim 18
Dependent Claim
42 words
A dental prosthesis as defined in claim 1; and further comprising at least one second groove provided in each of said element and said removal dental prosthesis component and at least one second such resilient friction element engaged in said second groove.
References Cited (Backward Citations)
US1008028A
Cited
US1218033A
Cited
US1364770A
Cited
DE339419C
Cited
US1417376A
Cited
US1520809A
Cited
US1577753A
Cited
DE841188C
Cited
DE2812175A1
Cited
DE2920112A1
Cited
DE2945489A1
Cited
CH639551A5
Cited
US4627136A
Cited
DE3526976A1
Cited
US4789338A
Cited
US4681542A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1994-03-25 | 1994-09-24 | 1995-03-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-03-25 | 1998-09-24 | 1999-03-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-03-25 | 2002-09-24 | 2003-03-26 | $7700.00 | Window Closed / Lapsed |