Patent US4512740A successfully refreshed from Google Patents.
US4512740A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plastic shield for orthodontic appliance
Assignee: Individual
•
Filing: 1984-03-07
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Granted: 1985-04-23
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Expires: 2004-03-07
Abstract
Abstract A plastic shield for preventing irritation to the inner tissue of the cheeks and lips of a patient when a labial orthodontic appliance is in place, and which prevents irritation to the tongue of a patient when a lingual appliance is in place. The shield of the appliance covering the orthodontic attachments to provide a smooth outer surface.
Inventors
- 👤 Craven H. Kurz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 22:55
CPC Classifications
A; A61; A61C; A61C7/00; A61C7/12; A61C7/125
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
84 words
A shield for an orthodontic appliance to protect the oral tissue of a patient from irritation when the patient is wearing the appliance, the appliance comprising a plurality of orthodontic attachments and an arch wire extending between the attachments, and a shield comprising an elongated arcuate member having a smooth outer face, and a plurality of fingers integral with said member and extending around the arch wire to engage the arch wire and hold the member in place covering the attachments of the appliance.
Claim 2
Dependent Claim
84 words
A shield for an orthodontic appliance to protect the oral tissue of a patient from irritation when the patient is wearing the appliance, the appliance comprising a plurality of orthodontic attachments and an arch wire extending between the attachments, and a shield comprising an elongated arcuate member having a smooth outer face, and a plurality of fingers integral with said member and extending around the arch wire to engage the arch wire and hold the member in place covering the attachments of the appliance.
Claim 3
Dependent Claim
16 words
The shield defined in claim 1, in which the member is formed of a plastic material.
References Cited (Backward Citations)
US3319626A
Cited
US4180912A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-04-22 | 1988-10-22 | 1989-04-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-04-22 | 1992-10-22 | 1993-04-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-04-22 | 1996-10-22 | 1997-04-23 | $7700.00 | Window Closed / Lapsed |