Press Release: Dura-Fibre : Industrial Paperboard Manufacturer Dura-Fibre Earns U.S. Patent for Crate Hinge

MENASHA, Wis.--(BUSINESS WIRE)-- #durafibre--The United States Patent and Trademark Office has awarded Dura-Fibre, a Menasha-based laminated paperboard manufacturer, a patent for its "Foldable Crate System." Patent 10,543,949 covers the unique paperboard fold which creates a 90-degree corner, improving the seal and reducing excess packaging. DuraCrate industrial shipping crates, are constructed of six layers of recycled or kraft paper, laminated into rigid paperboard. The Foldable Crate System features two