Patent
   D724197
Priority
Jan 15 2013
Filed
Jan 15 2013
Issued
Mar 10 2015
Expiry
Mar 10 2029
Assg.orig
Entity
unknown
35
21
n/a
The ornamental design for an oral sleep appliance, as shown and described.

FIG. 1 is a front perspective view of an oral sleep appliance.

FIG. 2 is a front elevation view of the invention.

FIG. 3 is a rear elevation view of the invention.

FIG. 4 is a bottom plan view of the invention.

FIG. 5 is a right side elevation view of the invention.

FIG. 6 is a top plan view of the invention; and,

FIG. 7 is a left side elevation view of the invention.

Hughes, Ronald W.

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