Patent US4557692A successfully refreshed from Google Patents.
US4557692A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Occlusal splints and the method of manufacturing the same
Assignee: Individual
•
Filing: 1983-05-02
•
Granted: 1985-12-10
•
Expires: 2003-05-02
Abstract
Abstract Disclosed are occlusal splints and the method of manufacturing the same. The occlusal splints described are worn on the upper arch of the mouth over the teeth. They are formed of two layers. The first layer is formed of a soft material molded to conform to the shape of the upper teeth and to be resiliently retained thereon, and the second layer is made of cold-cure acrylic resin built up on the first layer.
Inventors
- 👤 Peter M. Chorbajian
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 22:08
CPC Classifications
A; A61; A61C; A61C5/00; A61C5/007; A61C7/00; A63; A63B; A63B71/00; A63B71/08; A63B71/085
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
131 words
A method of making an occlusal splint having two layers of of resin material sized and shaped to be worn on the upper arch of the mouth over the teeth comprising the steps of molding an upper layer of resilient resin material to conform to the shape of the upper teeth and to be retained thereon, forming a lower layer of a cold-cure resin material which is built up on the upper layer, and shaping the lower surface of the lower layer so that the lower surface of the splint engages the upper surface of the lower teeth at a time when the condyls of the wearer are in their retruded rest position and said areas of engagement are all below the plane of the lowermost edges of said upper teeth.
Claim 2
Independent Claim
131 words
A method of making an occlusal splint having two layers of of resin material sized and shaped to be worn on the upper arch of the mouth over the teeth comprising the steps of molding an upper layer of resilient resin material to conform to the shape of the upper teeth and to be retained thereon, forming a lower layer of a cold-cure resin material which is built up on the upper layer, and shaping the lower surface of the lower layer so that the lower surface of the splint engages the upper surface of the lower teeth at a time when the condyls of the wearer are in their retruded rest position and said areas of engagement are all below the plane of the lowermost edges of said upper teeth.
Claim 3
Dependent Claim
23 words
The method of claim 1 wherein said upper resilient layer extends above the greatest curvature of at least some of the upper teeth.
Claim 4
Dependent Claim
14 words
The method of claim 1 wherein said upper layer is formed of acrylic resin.
References Cited (Backward Citations)
US4433960A
Cited
US4384854A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-12-09 | 1989-06-10 | 1989-12-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-12-09 | 1993-06-10 | 1993-12-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-12-09 | 1997-06-10 | 1997-12-10 | $7700.00 | Window Closed / Lapsed |