Patent US4842513A successfully refreshed from Google Patents.
US4842513A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Orthodontic device
Assignee: HARODENT KFO DENTAL VERTRIEB GmbH
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Filing: 1986-11-17
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Granted: 1989-06-27
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Expires: 2006-11-17
Abstract
Abstract An orthodontic device has the form of a bracket with wings which are disposed on a base plate and which are constructed in the form of separate shaped parts and welded onto the base plate, the base plate itself forming a separately preformed component. Preferably, the separately preformed base plate is constructed in the form of an adhesive support or adhesive base, and for this purpose is constructed with undercut recesses on the underside of the base plate.
Inventors
- 👤 Bodo Haarmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 02:38
CPC Classifications
A; A61; A61C; A61C7/00; A61C7/12; A61C7/14; A61C7/16
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
145 words
An orthodontic device in the form of a bracket comprising wings disposed on a baseplate, welding means welding said wings to said baseplate, said baseplate being formed as a separate preformed individual part, said wings being formed as separate shaped parts which are individually cut out in final shape from a bar by laser cutting, said baseplate having one side to which said wings are welded and an opposite side defining a base side, and a plurality of recesses in said base side formed by a laser beam, said recessed having a conical configuration with one end being the apex and the other end being circular, said circular end opening up onto said base side, said recesses having a longitudinal axis extending through said apex and through the center of said circular end, said apex extending at an acute angle relative to said base side.
Claim 2
Dependent Claim
145 words
An orthodontic device in the form of a bracket comprising wings disposed on a baseplate, welding means welding said wings to said baseplate, said baseplate being formed as a separate preformed individual part, said wings being formed as separate shaped parts which are individually cut out in final shape from a bar by laser cutting, said baseplate having one side to which said wings are welded and an opposite side defining a base side, and a plurality of recesses in said base side formed by a laser beam, said recessed having a conical configuration with one end being the apex and the other end being circular, said circular end opening up onto said base side, said recesses having a longitudinal axis extending through said apex and through the center of said circular end, said apex extending at an acute angle relative to said base side.
Claim 3
Dependent Claim
39 words
An orthodontic device according to claim 1, wherein said wings have a frontal rounded surface with one end portion of said surface defining a sloping foot section which approaches said one side of said baseplate at an acute angle.
Claim 4
Dependent Claim
24 words
An orthodontic device according to claim 2, wherein said welding means welds said sloping wing foot section to said one side of said baseplate.
Claim 5
Dependent Claim
21 words
An orthodontic device according to claim 1, wherein said welding means comprises fusion welds without a welding agent utilizing laser welding.
Claim 6
Dependent Claim
15 words
An orthodontic device according to claim 1, wherein said acute angle is from 40-60 degrees.
Claim 7
Dependent Claim
15 words
An orthodontic device according to claim 5, wherein said acute angle is about 50 degrees.
Claim 8
Dependent Claim
21 words
An orthodontic device according to claim 1, wherein said baseplate has 50-120 recesses per square centimeter area of said base side.
Claim 9
Dependent Claim
22 words
An orthodontic device according to claim 1, wherein at least some of said recesses have axes which intersect axes of other recesses.
Claim 10
Dependent Claim
21 words
An orthodontic device according to claim 8, wherein said intersection occurs in the plane of said base side of said baseplate.
Claim 11
Dependent Claim
24 words
An orthodontic device according to claim 8, wherein said intersection occurs closer to said cone apex than to said open end of said recesses.
Claim 12
Dependent Claim
23 words
An orthodontic device according to claim 1, wherein said recesses extend to a depth of from 60-90% of the thickness of said baseplate.
Claim 13
Dependent Claim
23 words
An orthodontic device according to claim 11, wherein said recesses extend to a depth of about 75% of the thickness of said baseplate.
Claim 14
Dependent Claim
25 words
An orthodontic device according to claim 1, wherein the axes of at least some recesses are non-parallel to the axes of other of said recesses.
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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) | 1992-06-26 | 1992-12-26 | 1993-06-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-06-26 | 1996-12-26 | 1997-06-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-06-26 | 2000-12-26 | 2001-06-27 | $7700.00 | Window Closed / Lapsed |