US Patent Issued to Andersen on Dec. 2 for "Fenestration unit with sash retention apparatus and methods" (Minnesota, Wisconsin Inventors)

ALEXANDRIA, Va., Dec. 2 -- United States Patent no. 12,486,696, issued on Dec. 2, was assigned to Andersen Corp. (Bayport, Minn.).

"Fenestration unit with sash retention apparatus and methods" was invented by Adam Rietz (Lakeland, Minn.), Allen DaRonco (Somerset, Wis.) and Christopher Hanson (Fridley, Minn.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Fenestration units including a movable sash located within a fenestration unit frame are described herein. The fenestration units further include structures configured to retain the movable sash within the frame with the structures being configured to form mechanical interlocks with the fenestration unit frame when the movable sash is in a closed position wit...