Patents by Inventor Lawrence K. Brown

Lawrence K. Brown has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Mail indication apparatus
    Patent number: 7331510
    Abstract: The invention features a mail indication device for determining whether the daily mail postal person has deposited mail in a rural or suburban mailbox. The mailbox indicator features a signal indicator composed of a dense material, a linking tether, and an attachment assembly mounted near or to the mailbox door.
    Type: Grant
    Filed: December 15, 2006
    Date of Patent: February 19, 2008
    Inventor: Lawrence K. Brown