US5362233A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Orthodontic appliance
Assignee: Individual
•
Filing: 1993-02-22
•
Granted: 1994-11-08
•
Expires: 2013-02-22
Abstract
Abstract An orthodontic appliance includes a bracket having a front face provided with a rectangular recess for receiving an archwire and rear face for attachment to a tooth or backing plate with an intermediate segment defining a peripheral groove having a pair of base surfaces which are curved about a common axis for receiving supplemental or primary archwires; the body is provided with a rear segment including a through channel for receiving a retaining pin which has a head for cooperation with a notch formed in the front face; the recess of the front face is angled in two directions to increase the variability of the forces that can be applied to the subjacent tooth in practice.
Inventors
- 👤 William J. Thompson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 21:33
CPC Classifications
A; A61; A61C; A61C7/00; A61C7/12; A61C7/14; A61C7/143; A61C7/16
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
181 words
An orthodontic bracket for use with at least one archwire comprising: a body having a first segment including a rear face for attachment to a tooth surface or a backing plate and a second segment including a front face and an intermediate segment disposed between and spacing said first and second segments apart, said intermediate segment having a peripheral dimension less than the peripheral dimensions of said first and second segments to thereby define a pair of grooves between said first and second segments with each having an inner base surface, at least one of said base surfaces being convexly curved, said first segment having a channel therein for receiving a fastening device, said channel extending generally transversely relative to said base surface of a said groove, a retaining device for holding a wire engaged with said bracket, said retaining device having a first enlarged end and an opposite end having split legs for insertion into said channel of said bracket, said enlarged end having a recess for at least partially surrounding a wire disposed in said groove of said bracket.
Claim 2
Dependent Claim
181 words
An orthodontic bracket for use with at least one archwire comprising: a body having a first segment including a rear face for attachment to a tooth surface or a backing plate and a second segment including a front face and an intermediate segment disposed between and spacing said first and second segments apart, said intermediate segment having a peripheral dimension less than the peripheral dimensions of said first and second segments to thereby define a pair of grooves between said first and second segments with each having an inner base surface, at least one of said base surfaces being convexly curved, said first segment having a channel therein for receiving a fastening device, said channel extending generally transversely relative to said base surface of a said groove, a retaining device for holding a wire engaged with said bracket, said retaining device having a first enlarged end and an opposite end having split legs for insertion into said channel of said bracket, said enlarged end having a recess for at least partially surrounding a wire disposed in said groove of said bracket.
Claim 3
Dependent Claim
40 words
The invention as claimed in claim 1 wherein one of said legs has a flange protruding outwardly therefrom, said channel through said bracket having a recessed edge engageable by said flange when said retaining device is inserted in said channel.
Claim 4
Dependent Claim
235 words
An orthodontic bracket for use with at least one arch wire comprising: a body having a first segment including a rear face for attachment to a tooth surface or a backing plate and a second segment including a front face and an intermediate segment disposed between and spacing said first and second segments apart, said intermediate segment having a peripheral dimension less than the peripheral dimensions of said first and second segments to thereby define a pair of grooves between said first and second segments with each having an inner base surface, at least one of said base surfaces being convexly curved, said first segment having a channel therein for receiving a fastening device, said channel extending generally transversely relative to said base surface of a said groove, said bracket including a retaining device for holding a wire engaged with said bracket; said retaining device having a first enlarged end and an opposite end having split legs for insertion into said channel of said bracket, said enlarged end having a recess for at least partially surrounding a wire disposed in a said groove of said bracket, one of said legs having a flange protruding outwardly therefrom, said channel through said bracket having a recessed edge engageable by said flange when said retaining device is inserted in said channel, said channel having a selected length and said pin has a length less than said selected length.
Claim 5
Dependent Claim
235 words
An orthodontic bracket for use with at least one arch wire comprising: a body having a first segment including a rear face for attachment to a tooth surface or a backing plate and a second segment including a front face and an intermediate segment disposed between and spacing said first and second segments apart, said intermediate segment having a peripheral dimension less than the peripheral dimensions of said first and second segments to thereby define a pair of grooves between said first and second segments with each having an inner base surface, at least one of said base surfaces being convexly curved, said first segment having a channel therein for receiving a fastening device, said channel extending generally transversely relative to said base surface of a said groove, said bracket including a retaining device for holding a wire engaged with said bracket; said retaining device having a first enlarged end and an opposite end having split legs for insertion into said channel of said bracket, said enlarged end having a recess for at least partially surrounding a wire disposed in a said groove of said bracket, one of said legs having a flange protruding outwardly therefrom, said channel through said bracket having a recessed edge engageable by said flange when said retaining device is inserted in said channel, said channel having a selected length and said pin has a length less than said selected length.
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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) | 1997-11-07 | 1998-05-09 | 1998-11-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-11-07 | 2002-05-09 | 2002-11-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-11-07 | 2006-05-09 | 2006-11-08 | $7700.00 | Window Closed / Lapsed |