Closures > Removable closure situated by resilient distortion and retained by preformed configuration (e.g., detent) > Patents

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Class Information
Number: 220/780
Name: Receptacles > Closures > Removable closure situated by resilient distortion and retained by preformed configuration (e.g., detent)
Description: Subject matter wherein the closure or closure support is provided with structure designed to induce a deformation of the closure or the closure support during their mating cooperation, the return of the deformed portion to its normal position serves to cause an interlock between the closure and the closure support, thus preventing their casual separation.

Sub-classes under this class:

Class Number	Class Name	Patents
220/792	Closure flange has noninterlocking contact internal to passage mouth	118
220/793	Closure includes integral lifting tab	97
220/783	Closure interlocked by upward opening trough at passage mouth	70
220/782	Closure reinforced	75
220/781	Having structure to stack or nest when not in use	87
220/789	Interlock internal to passage mouth (e.g., stopper type closure)	167
220/794	Interlock surface on closure is bent or impressed	23
220/784	Noncontinuous interlock along perimeter of closure, closure support juncture	146
220/795	With gasket or packing	72

Patents under this class:

1 2 3 4 5

Patent Number	Title Of Patent	Date Issued
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5988426	Leakproof vented beverage lid	Nov. 23, 1999