USD357737SExpiredUtility

Box filter

60
Assignee: POROUS MEDIA CORPPriority: Jun 24, 1993Filed: Jun 24, 1993Granted: Apr 25, 1995
Est. expiryJun 24, 2013(expired)· nominal 20-yr term from priority
Inventors:Michael R. Spearman
60
PatentIndex Score
9
Cited by
11
References
1
Claims

Claims

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

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