ALEXANDRIA, Va., Oct. 8 -- United States Patent no. 12,435,561, issued on Oct. 7.
"Securable pet door" was invented by Lisa E. Harrington (Somerville, Mass.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A securable pet door is disclosed. The securable pet door may comprise at least one door, at least one knob, one or more windows, at least one frame, and/or at least one hinge. The knob may comprise a latch for secure closing. When the pet door comprises at least one hinge, the hinge(s) may be inserted into at least one hinge recess so that the door may be securely locked via at least one locking mechanism. The different elements of the securable pet door are configured to be oriented in a predetermined, sec...