C - Chemistry – Metallurgy – 12 – M
Patent
C - Chemistry, Metallurgy
12
M
195/145, 217/36
C12M 1/22 (2006.01)
Patent
CA 2013670
A Petri dish in which the flat bottom is provided with a plurality of preferablyradial ribs is disclosed. The ribs do not project more that about 0.05 inches above the upper surface of the bottom, and preferably not more than about 0.03 inches. The thickness of the bottom portion other than at the ribs is not greater than about 0.03 inches, and preferably not greater than about 0.025 inches. Various rib arrangements are contemplated. In the preferred embodiment, there are at least three radial ribs, and preferably four ribs spaced at 90 degrees to each other. A lid having the same basic structure may also be produced. Generally any suitable rib layout could be selected. A large number of ribs could be provided, if desired, though not a requirement. The ribs need not necessarily be radial. The ribs need not necessarily be continuous, and they need not necessarily run all the way from the center to the side wall, or from side wall to side wall. The ribs need not necessarily be straight, but could be curved. The ribs could project downwardly instead of or in addition to upwardly.
Iskander Ezzat
Na
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