USD380259SExpiredUtility

Air vent blocking device

Assignee: ARTZ BRENTPriority: Jan 23, 1995Filed: Jan 23, 1995Granted: Jun 24, 1997

Est. expiryJan 23, 2015(expired)· nominal 20-yr term from priority

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Claims

exact text as granted — not AI-modified

The ornamental design for an air vent blocking device, as shown and described.

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