Abstract The impression trays of this invention include an upper impression tray having a body which is a convoluted member having an oral plate which follows the general contours of the roof of the mouth and which provides a lingual portion adjacent the upper teeth, and buccal walls which are detachably mounted to the outer rectilinear edges of the body to form a depression in which impression compound may be disposed. This invention also includes a lower impression tray having a U-shaped body, including a trough-like portion corresponding to the base of the U-shape and to the incisors of the lower row of teeth, and a pair of mounting flanges issuing from the trough-like portion as legs of the U-shape, over the lower molar areas, and detachable buccal and lingual walls forming a trough-like depression into which the impression compound may be disposed.
Inventors
👤 Burton V. Holcomb
Bibliographic Details
Application Number—
JurisdictionUS
Data Sourcegoogle_patents
Last Synchronized2026-10-23 03:39
CPC Classifications
A; A61; A61C; A61C9/00; A61C9/0006
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
67 words
An upper impression tray comprising a body which is a convoluted member having an oral plate which follows the general contours of the roof of the mouth and which provides a lingual portion adjacent the upper teeth, and buccal walls which are detachably mounted by snap lock elements to the outer rectilinear edges of the body, to form a depression in which impression compound may be disposed.
Claim 2
Dependent Claim
67 words
An upper impression tray comprising a body which is a convoluted member having an oral plate which follows the general contours of the roof of the mouth and which provides a lingual portion adjacent the upper teeth, and buccal walls which are detachably mounted by snap lock elements to the outer rectilinear edges of the body, to form a depression in which impression compound may be disposed.
Claim 3
Dependent Claim
84 words
A lower impression tray having a U-shaped body, a trough-like portion corresponding to the base of the U-shape and to the incisors of the lower row of teeth, and a pair of mounting flanges issuing from said trough-like portion as legs of the U-shape, over the lower molar areas, and a lingual walls being detachably mounted to and issuing interiorly from said mounting flanges; and a buccal wall detachably mounted to said body forming a trough-like depression into which impression compound may be disposed.
Claim 4
Dependent Claim
84 words
A lower impression tray having a U-shaped body, a trough-like portion corresponding to the base of the U-shape and to the incisors of the lower row of teeth, and a pair of mounting flanges issuing from said trough-like portion as legs of the U-shape, over the lower molar areas, and a lingual walls being detachably mounted to and issuing interiorly from said mounting flanges; and a buccal wall detachably mounted to said body forming a trough-like depression into which impression compound may be disposed.
Claim 5
Dependent Claim
16 words
The apparatus of claim 2 wherein said lingual wall is detachably mounted to said mounting flanges.
Claim 6
Dependent Claim
19 words
The apparatus of claim 2 wherein said buccal walls are detachably mounted to said mounting flanges by snap locks.
Claim 7
Dependent Claim
18 words
The apparatus of claim 3 wherein said lingual walls are detachably mounted to mounting flanges by snap locks.