Crush-resistant disposable lid and containers utilizing same

Stock material or miscellaneous articles – Hollow or container type article – Polymer or resin containing

Reexamination Certificate

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Details

C428S034100, C428S036600, C220S780000, C220S790000

Reexamination Certificate

active

07955671

ABSTRACT:
A domed lid12for a food container10is configured for ease of engagement and removal from a container base14.The lid characteristically includes: (a) a dome portion16with a top wall24and a sidewall26; (b) a flange portion28extending outwardly away from a lower portion of the sidewall; and (c) a tab portion30extending outwardly from the flange. The flange portion is provided with a rim32having a variable profile around the rim characterized in that: (i) the rim is provided with a securing undercut portion36extending around the majority of its periphery adapted to secure the lid to an outer border of base14;and (ii) the rim has a pair of relatively passive engagement profile portions42, 44on either side of tab30, extending to the securing undercut portion of the rim, the passive engagement profile portions are configured so that they are undercut less than the securing undercut portion of the lid, thereby facilitating engagement of the lid with, or removal of the lid from, base14.

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