USD572356SActiveUtility
Air filtration device
Est. expiryFeb 1, 2027(~0.5 yrs left)· nominal 20-yr term from priority
Inventors:Blair Lawrence Harber
88
PatentIndex Score
41
Cited by
13
References
1
Claims
Claims
exact text as granted — not AI-modifiedCLAIM
The ornamental design for an air filtration device, as shown and described.Join the waitlist — get patent alerts
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