Patent ID: 11680236

Abstract:
A Petri dish (100) base (300) and lid (200) each having a substantially circular, substantially flat region from which sidewalls extend perpendicular to the flat region (312) forming a corner (326), (230). The base may have a base stacking ring (325) extending from the base (300) at the corner (326), and an internal channel (330) around the inside of the base (300) at the corner (326). The base (300) may have a uniform cross-sectional thickness (350) and may also have vents (322) in the base stacking ring (325). The lid (200) may have a uniform cross-sectional thickness (250). The lid (200) may have a lid stacking ring (225) at the corner (230), which forms a groove (240) in the interior (212) of the lid (200) at the corner (230). The lid may also have ribs (295) and vents (222) to enable multiple dishes to be stacked without forming a vacuum.