Shade guide
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A portion of the disclosure of this patent document contains material which is subject to copyright protection. This patent document may show and/or describe matter which is or may become trade dress of the owner. The copyright and trade dress owner has no objection to the facsimile reproduction by anyone of the patent disclosure as it appears in the Patent and Trademark Office patent files or records, but otherwise reserves all copyright and trade dress rights whatsoever.
The text shown in broken lines in the figures represents portions of the shade guide that form no part of the claimed design.
Claims
The ornamental design for a shade guide, as shown and described.
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Type: Grant
Filed: Dec 13, 2013
Date of Patent: Jul 7, 2015
Assignee: Ivoclar Vivadent AG (Schaan)
Inventors: Ronny Watzke (Feldkirch), Robert Grünenfelder (Eschen), Michael Brotzge (Koblach), Gottfried Rohner (Altstätten)
Primary Examiner: Wan Laymon
Application Number: 29/476,396