Patent US4624640A successfully refreshed from Google Patents.
US4624640A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wafer for a dental impression for identification purposes
Assignee: Individual
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Filing: 1984-11-06
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Granted: 1986-11-25
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Expires: 2004-11-06
Abstract
Abstract A method and article for providing identification means, comprising taking an impression of teeth with a wax wafer of special configuration such that the wafer receives an impression which gives the size and shape of each tooth from the occusal surface to the gum line, and also provides information on tooth position and jaw relationship, to provide maximum information for identification. The wafer with the impression is then stored for use in case of need, preferably in a container which is sealed so that tampering with the contents can be detected.
Inventors
- 👤 David A. Tesini
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 20:47
CPC Classifications
A; A61; A61C; A61C9/00; A61C19/00; A61C19/04; A61C19/05
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
92 words
A wafer for taking a simultaneous impression of upper and lower teeth, comprising upper and lower layers of impressionable material separated by a layer of ductile material, said wafer having a pair of laterally spaced portions to receive the impression of the molars and being thick enough to record the shape of the molars from the biting surface substantially to the gum line, and a thicker anterior portion extending between the posterior portions and positioned to receive an impression of the front teeth from the biting edge substantially to the gum line.
Claim 2
Dependent Claim
92 words
A wafer for taking a simultaneous impression of upper and lower teeth, comprising upper and lower layers of impressionable material separated by a layer of ductile material, said wafer having a pair of laterally spaced portions to receive the impression of the molars and being thick enough to record the shape of the molars from the biting surface substantially to the gum line, and a thicker anterior portion extending between the posterior portions and positioned to receive an impression of the front teeth from the biting edge substantially to the gum line.
Claim 3
Dependent Claim
39 words
A wafer as set out in claim 1 which is generally U-shaped in plan with the posterior portion being formed by a pair of spaced legs, the anterior portion connecting said spaced legs and being thicker than the legs.
Claim 4
Dependent Claim
15 words
A wafer as set out in claim 2 in which said legs have rounded ends.
Claim 5
Dependent Claim
104 words
A wafer for taking a simultaneous impression of a person's upper and lower teeth, comprising upper and lower layers of impressionable material with an intervening layer of ductile material capable of being easily and permanently deformable by biting, said wafer having a pair of separate legs and a connecting portion disposed in generally a U-shape that conforms to the position of teeth in a human mouth, the ends of the legs being rounded, and a handle extending from the connecting portion, in which the upper and lower layers of impressionable material of the connecting portion are thicker than the corresponding layers on the legs.
Claim 6
Dependent Claim
104 words
A wafer for taking a simultaneous impression of a person's upper and lower teeth, comprising upper and lower layers of impressionable material with an intervening layer of ductile material capable of being easily and permanently deformable by biting, said wafer having a pair of separate legs and a connecting portion disposed in generally a U-shape that conforms to the position of teeth in a human mouth, the ends of the legs being rounded, and a handle extending from the connecting portion, in which the upper and lower layers of impressionable material of the connecting portion are thicker than the corresponding layers on the legs.
Claim 7
Dependent Claim
78 words
A wafer for taking a simultaneous impression of upper and lower teeth, comprising upper and lower layers of material suitable for taking such an impression separated by a layer of ductile material, in which the wafer has a posterior portion to receive an impression of molars and an anterior portion to receive an impression of canines and incisors, in which the wafer thickness increases from the rear of the posterior portion to the front of the anterior portion.
Claim 8
Dependent Claim
78 words
A wafer for taking a simultaneous impression of upper and lower teeth, comprising upper and lower layers of material suitable for taking such an impression separated by a layer of ductile material, in which the wafer has a posterior portion to receive an impression of molars and an anterior portion to receive an impression of canines and incisors, in which the wafer thickness increases from the rear of the posterior portion to the front of the anterior portion.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-11-24 | 1990-05-26 | 1990-11-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-11-24 | 1994-05-26 | 1994-11-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-11-24 | 1998-05-26 | 1998-11-25 | $7700.00 | Window Closed / Lapsed |