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Patent drawing for Containers for holding materials
US 11,167,904 B2
Packaging US 11,167,904 B2 Expired

Containers for holding materials

This invention describes a container made of an outer rigid shell and an inner flexible bag or liner that holds liquids. The inner bag has a special connector with stakes that secure it to the outer shell, which is specifically made from recycled or pulp material like wood or paper. The outer shell can be molded in pieces and assembled, or molded flat and then folded into its final shape.

Why it matters: Since 2018, the global demand for sustainable packaging has intensified significantly. This design, with its minimal plastic liner and recycled pulp shell, directly addresses current pressures to reduce plastic waste and use renewable materials.

Status
ExpiredProtection ended and was never renewed
How hard to build
ModerateCustom molded pulp shell, custom fitment, ultrasonic welding

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