USD328348SExpiredUtility

Dental shade guide

44
Assignee: MINNESOTA MINING & MFGPriority: Aug 10, 1990Filed: Aug 10, 1990Granted: Jul 28, 1992
Est. expiryAug 10, 2010(expired)· nominal 20-yr term from priority
Inventors:Daryl L. NeisseRoss A. LonghiniGerald E. DrakeJames R. Kvitrud
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PatentIndex Score
5
Cited by
11
References
1
Claims

Claims

exact text as granted — not AI-modified
The ornamental design for a dental shade guide, as shown and described.

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