USD382049SExpiredUtility

Air filtering device designed for installation over an interior vent grill of evaporative coolers

51
Individually held — no corporate assignee on recordPriority: Apr 1, 1996Filed: Apr 1, 1996Granted: Aug 5, 1997
Est. expiryApr 1, 2016(expired)· nominal 20-yr term from priority
Inventors:Flavio C. Trampp
51
PatentIndex Score
15
Cited by
3
References
1
Claims

Claims

exact text as granted — not AI-modified
The ornamental design for an air filtering device designed for installation over an interior vent grill of evaporative coolers, as shown and described.

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