USD281273SExpiredUtility

Self-closing ventilation louver

64
Assignee: LESLIE LOCKE INCPriority: Jan 6, 1983Filed: Jan 6, 1983Granted: Nov 5, 1985
Est. expiryJan 6, 2003(expired)· nominal 20-yr term from priority
Inventors:Kert E. Artwick
64
PatentIndex Score
9
Cited by
11
References
1
Claims

Claims

exact text as granted — not AI-modified
The ornamental design for a self-closing ventilation louver, as shown and described.

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