Container closure assembly with snap-on overcap

Receptacles – Closures – Superposed closures for common opening

Reexamination Certificate

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Details

C220S266000, C220S304000, C220S601000, C220S214000, C215S230000, C215S250000, C206S459100

Reexamination Certificate

active

06968968

ABSTRACT:
A container closure assembly for closing the neck opening of a container includes a closure plug for threaded engagement with the neck opening, a sealing gasket positioned between the container and the closure plug, and a unitary, molded plastic overcap constructed and arranged for assembly to the closure plug. The overcap includes a top portion defining a pair of weakened score lines that partition the top portion into three sections. A surrounding sidewall connects a pair of flange sections to first and second outer sections of the top portion. A center post axially extends from the center section and includes external threads for engagement with internal threads on the closure plug. The overcap includes a raised portion in unitary construction with the top portion and spanning the pair of weakened score lines so as to visually reveal stress discoloration upon upward movement of the first and second outer sections.

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patent: 3637644 (1988-05-01), None
patent: 2222399 (1990-03-01), None

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