USD408902SExpiredUtility

Toilet ventilation insert

9
Individually held — no corporate assignee on recordPriority: Mar 12, 1998Filed: Mar 12, 1998Granted: Apr 27, 1999
Est. expiryMar 12, 2018(expired)· nominal 20-yr term from priority
Inventors:Billy B BerryRobert L. Keene
9
PatentIndex Score
1
Cited by
5
References
1
Claims

Claims

exact text as granted — not AI-modified
The ornamental design for a toilet ventilation insert, as shown.

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