ALEXANDRIA, Va., March 24 -- United States Patent no. 12,584,349, issued on March 24.
"Pet door inserts for window frames and sliding doors" was invented by Alexander Widner (Portland, Ore.).
According to the abstract* released by the U.S. Patent & Trademark Office: "Pet door inserts including a base panel system and an adjustment panel system. The base panel system includes a first and second base panels, a pet door, and a track. The pet door moveably mounts to the first base panel within a pet door opening and selectively covers the pet door opening. The second base panel is coupled to the first base panel along a first lateral side of the second base panel. The track extends longitudinally along a medial portion of the second base pane...