USD326540SExpiredUtility

Filter mask

90
Assignee: MOLDEX/METRIC PRODUCTS INCPriority: Sep 17, 1990Filed: Sep 17, 1990Granted: May 26, 1992
Est. expirySep 17, 2010(expired)· nominal 20-yr term from priority
Inventors:Michael Forbes Scholey
90
PatentIndex Score
35
Cited by
4
References
1
Claims

Claims

exact text as granted — not AI-modified
The ornamental design for a filter mask, as shown and described.

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