US4500288A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Angular mold for dental use
Assignee: KerrHawe SA
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Filing: 1982-12-30
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Granted: 1985-02-19
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Expires: 2002-12-30
Abstract
Abstract The mold in question includes a cap (1) of transparent material strengthened by a single or multiple reinforcement (2, 2', 3) of wire or metal strip incorporated in the plastic of the cap. The cap (1) or reinforcement ends above in a stem (1') which makes it possible to grasp the mold and hold it in place for the entire time of polymerization of the filling mastic performed by ultraviolet or visible light rays. This mold is particularly suited for giving the exact shape of the filling of front teeth, both on the right and left side.
Inventors
- 👤 Hans C. VON Weissenfluh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 04:21
CPC Classifications
B; B29; B29C; B29C33/00; B29C33/0011; A; A61; A61C; A61C5/00; A61C5/80; B29C35/00; B29C35/02; B29C35/08; B29K; B29K2105/00; B29K2105/0002
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
114 words
An angular mold for dental use comprising a cap of material transparent to ultraviolet rays and the rays of the visible solar spectrum, the cap having the shape of the lateral half of a human tooth and being open on one side and closed at its top and open at its bottom, the cap having a stem on its closed top that makes it possible to grasp the mold without blocking the passage of the rays of ultraviolet and visible light, and a permanently deformable reinforcement that extends from top to bottom of the cap and that occupies only a minor portion of the area of the cap thereby to avoid blocking said rays.
Claim 2
Dependent Claim
114 words
An angular mold for dental use comprising a cap of material transparent to ultraviolet rays and the rays of the visible solar spectrum, the cap having the shape of the lateral half of a human tooth and being open on one side and closed at its top and open at its bottom, the cap having a stem on its closed top that makes it possible to grasp the mold without blocking the passage of the rays of ultraviolet and visible light, and a permanently deformable reinforcement that extends from top to bottom of the cap and that occupies only a minor portion of the area of the cap thereby to avoid blocking said rays.
Claim 3
Dependent Claim
10 words
Mold as in claim 1, wherein the reinforcement is metallic.
Claim 4
Dependent Claim
35 words
Mold as in claim 1, wherein said reinforcement is fork-shaped with a V progression (2, 2') and buried in the transparent plastic or the cap (1), a transparent material that extends into a handle (1').
Claim 5
Dependent Claim
24 words
Mold as in claim 3, wherein said V reinforcement has branches which are shaped to fit the profile of the tooth to be filled.
Claim 6
Dependent Claim
27 words
Mold as in claim 4, wherein said reinforcement consists of a fork located forward with respect to the cap, i.e., in the vicinity of its side opening.
Claim 7
Dependent Claim
31 words
Mold as in claim 4, wherein said cap has a center line opposite said side opening and said reinforcement consists of a fork located along said center line of said cap.
Claim 8
Dependent Claim
19 words
Mold as in claim 4, wherein said reinforcement consists of a fork located at the bottom of said cap.
Claim 9
Dependent Claim
27 words
Mold as in claim 4, wherein said reinforcement consists of two forks with one located at the side opening, the other at the bottom of said cap.
Claim 10
Dependent Claim
22 words
Mold as in claim 4, wherein said reinforcement is shaped to be inserted on either side of the tooth to be filled.
Claim 11
Dependent Claim
25 words
Mold as in claim 4, wherein said reinforcement is symmetrical, to enable it to be inserted on either side of the tooth to be filled.
Claim 12
Dependent Claim
10 words
Mold as in claim 1, wherein said reinforcement is plastic.
Claim 13
Dependent Claim
23 words
Mold as in claim 1, wherein said fork is of a metallic material permanently deformable by crushing against the tooth to be filled.
Claim 14
Dependent Claim
20 words
Mold as in claim 1, wherein said reinforcement consists of a net embedded in the transparent material of the cap.
Claim 15
Dependent Claim
12 words
Mold as in claim 1, wherein said reinforcement is a metallic net.
References Cited (Backward Citations)
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Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-02-19 | 1988-08-20 | 1989-02-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-02-19 | 1992-08-20 | 1993-02-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-02-19 | 1996-08-20 | 1997-02-19 | $7700.00 | Window Closed / Lapsed |