USD559349SActiveUtility
Portable filter
Est. expiryAug 9, 2026(~0.1 yrs left)· nominal 20-yr term from priority
Inventors:Dennis B. Brown
55
PatentIndex Score
9
Cited by
5
References
1
Claims
Claims
exact text as granted — not AI-modifiedCLAIM
The ornamental design for a portable filter, as shown.Join the waitlist — get patent alerts
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