Official Gazette of the United States Patent and Trademark Office:

Find the best Mailboxes & Slots with Lockable at the lowest price from top brands like Gibraltar, Stanley, Architectural Mailboxes & more

Locking Mailbox Inserts adds a secure locking compartment to standard 6” or 8” wide post mount

mailbox door slot Most secure mailboxes consist of a slot for the USPS to drop off mail They also have a secured or locked area where you pick up the delivered mail using a key

mailbox with slot and lock Your mail carrier will put packages in the mailbox using the delivery tray The rest of your mail your carrier will put through the narrow slot This makes