US4419992A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Occlusal splints and the method of manufacturing the same
Assignee: Individual
•
Filing: 1981-02-12
•
Granted: 1983-12-13
•
Expires: 2001-02-12
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
2026-10-25 00:52
CPC Classifications
A; A63; A63B; A63B71/00; A63B71/08; A63B71/085; A61; A61C; A61C7/00; A61C7/08; A61C7/36
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
138 words
An occlusal splint sized and shaped to be worn on the upper arch of the mouth over the teeth, said occlusal splint being formed of two layers of resin, the upper layer molded to conform to the shape of the upper teeth and to be resiliently retained thereon, and a lower layer formed of a cold-cure resin built up on the upper layer, the lower surface of said lower layer shaped so that when the lower jaw is moved toward the upper arch with the condyls of the wearer in their retruded rest position the upper surfaces of the lower teeth will engage said lower surface of the splint at the same time and said areas of engagement of those teeth that are in engagement are all below the plane of the lowermost edges of said upper teeth.
Claim 2
Dependent Claim
138 words
An occlusal splint sized and shaped to be worn on the upper arch of the mouth over the teeth, said occlusal splint being formed of two layers of resin, the upper layer molded to conform to the shape of the upper teeth and to be resiliently retained thereon, and a lower layer formed of a cold-cure resin built up on the upper layer, the lower surface of said lower layer shaped so that when the lower jaw is moved toward the upper arch with the condyls of the wearer in their retruded rest position the upper surfaces of the lower teeth will engage said lower surface of the splint at the same time and said areas of engagement of those teeth that are in engagement are all below the plane of the lowermost edges of said upper teeth.
Claim 3
Dependent Claim
17 words
An occlusal splint as recited in claim 1 wherein said upper layer is formed of acrylic resin.
Claim 4
Dependent Claim
19 words
An occlusal splint as recited in claim 1 wherein said upper layer is formed of a resilient mouthguard material.
Claim 5
Dependent Claim
25 words
An occlusal splint as recited in claim 3 wherein said upper layer extends above the greatest curvature of at least some of the upper teeth.
Claim 6
Dependent Claim
53 words
An occlusal splint as recited in claim 1 wherein: (a) the upper portion of the splint is formed of a resilient material and (b) the upper portion of the splint extends above the greatest curvature of at least some of the upper teeth, whereby the splint is resiliently retained on the upper teeth.
References Cited (Backward Citations)
US3124129A
Cited
US3303844A
Cited
US3385291A
Cited
US3682164A
Cited
US4044762A
Cited
US3924638A
Cited
US4063552A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-12-12 | 1987-06-13 | 1987-12-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-12-12 | 1991-06-13 | 1991-12-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-12-12 | 1995-06-13 | 1995-12-13 | $7700.00 | Window Closed / Lapsed |