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The ornamental design for a toilet ventilation insert, as shown. |
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FIG. 1 is a front elevational view of the toilet ventilation insert of the present invention;
FIG. 2 is a back elevational view of the toilet ventilation insert of FIG. 1;
FIG. 3 is a left side elevational view of the toilet ventilation insert of FIG. 1;
FIG. 4 is a right side elevational view of the toilet ventilation insert of FIG. 1;
FIG. 5 is a top plan view of the toilet ventilation insert of FIG. 1; and,
FIG. 6 is a bottom plan view of the toilet ventilation insert of FIG. 1.
Berry, Billy B, Keene, Robert L.
| Patent | Priority | Assignee | Title |
| D653317, | Jun 10 2010 | Toilet ventilation apparatus |
| Patent | Priority | Assignee | Title |
| 5522093, | Sep 29 1994 | Toilet ventilation system | |
| 5575019, | Feb 22 1991 | Toilet ventilation system | |
| 5638553, | Aug 23 1996 | Toilet ventilation system | |
| 5727263, | Feb 10 1995 | Toilet ventilation system | |
| D290037, | Sep 24 1984 | GRIFFIN TODD & SONS, INC , A NC CORP | Ventilation conduit for toilet seats or the like |
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