Patent
   D340523
Priority
Dec 28 1990
Filed
Dec 28 1990
Issued
Oct 19 1993
Expiry
Oct 19 2007
Assg.orig
Entity
unknown
43
19
n/a
The ornamental design for an orthodontic bracket base, as shown and described.

FIG. 1 is a top, front, right perspective view of an orthodontic bracket base showing my new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a right side elevational view thereof, the left side being a mirror image; and,

FIG. 4 is a front elevational view thereof.

The orthodontic bracket base which is partially shown is repeated throughout the base area.

The broken line drawing of an orthodontic bracket is for illustrative purposes only and forms no part of the claimed design.

Barngrover, Conrad A.

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Executed onAssignorAssigneeConveyanceFrameReelDoc
Dec 20 1990BARNGROVER, CONRAD A MINNESOTA MINING AND MANUFACTURING COMPANY, A CORP OF DEASSIGNMENT OF ASSIGNORS INTEREST 0055550510 pdf
Dec 28 1990Minnesota Mining and Manufacturing Company(assignment on the face of the patent)
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