Patent ID: 11877737
Assignee: ULTRADENT PRODUCTS, INC.
Field: nan (nan)
Classification: CPC nan | IPC A

Claim 7:
8. The frame of a cheek and lip expansion device of claim 1, further comprising:
a first upper thickened structure disposed between the first upper side member and the upper connecting portion, the first upper thickened structure having an enlarged cross-section relative to adjacent portions of the first upper side member and the upper connecting portion;
a second upper thickened structure disposed between the second upper side member and the upper connecting portion, the second upper thickened structure having an enlarged cross-section relative to adjacent portions of the second upper side member and the upper connecting portion;
a first lower thickened structure disposed between the first lower side member and the lower connecting portion, the first lower thickened structure having an enlarged cross-section relative to adjacent portions of the first lower side member and the lower connecting portion; and
a second lower thickened structure disposed between the second lower side member and the lower connecting portion, the second lower thickened structure having an enlarged cross-section relative to adjacent portions of the second lower side member and the lower connecting portion.