US4511331A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Convertible buccal tube/bracket appliance
Assignee: 3M Unitek Corp
•
Filing: 1983-08-08
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Granted: 1985-04-16
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Expires: 2003-08-08
Abstract
Abstract An orthodontic appliance which converts from a buccal tube to a bracket upon the removal of a wire insert which is partly positioned within the longitudinal slot of a bracket body and attached to the surface of the bracket.
Inventors
- 👤 Robert A. Scebold
- 👤 James D. Cleary
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 21:51
CPC Classifications
A; A61; A61C; A61C7/00; A61C7/12; A61C7/28; A61C7/282
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
162 words
An orthodontic appliance convertible from a buccal tube to a bracket comprising: a bracket body portion having opposing vertical surfaces and including a buccal surface having a longitudinal slot extending substantially mesial-distal therethrough; and a removable wire insert attached to said body portion having an intermediate portion and two end portions, each extending from an opposing end of said intermediate portion, said intermediate portion extending longitudinally through the length of said slot and being positioned within at least a portion of said slot so as to form a tubular passageway between said body portion and said insert for accommodating an arch wire therethrough, said two opposing end portions protruding from said slot so as to be externally accessible for facilitating removal of said insert, uncovering of said slot and permitting said body portion to be used as a bracket; wherein at least one end portion is formed into a helical loop, said loop having a terminal portion attached to a vertical surface.
Claim 2
Dependent Claim
162 words
An orthodontic appliance convertible from a buccal tube to a bracket comprising: a bracket body portion having opposing vertical surfaces and including a buccal surface having a longitudinal slot extending substantially mesial-distal therethrough; and a removable wire insert attached to said body portion having an intermediate portion and two end portions, each extending from an opposing end of said intermediate portion, said intermediate portion extending longitudinally through the length of said slot and being positioned within at least a portion of said slot so as to form a tubular passageway between said body portion and said insert for accommodating an arch wire therethrough, said two opposing end portions protruding from said slot so as to be externally accessible for facilitating removal of said insert, uncovering of said slot and permitting said body portion to be used as a bracket; wherein at least one end portion is formed into a helical loop, said loop having a terminal portion attached to a vertical surface.
Claim 3
Dependent Claim
34 words
The orthodontic appliance of claim 1 wherein one end portion is a helical loop and said other end portion angularly extends from said intermediate portion and is attached to a vertical bracket body surface.
References Cited (Backward Citations)
US4416627A
Cited
US4355975A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-04-15 | 1988-10-15 | 1989-04-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-04-15 | 1992-10-15 | 1993-04-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-04-15 | 1996-10-15 | 1997-04-16 | $7700.00 | Window Closed / Lapsed |