Patents by Inventor April Lynn Spring

April Lynn Spring 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).

  • Underwear
    Patent number: D581628
    Type: Grant
    Filed: December 29, 2006
    Date of Patent: December 2, 2008
    Assignee: Spring & Associates
    Inventor: April Lynn Spring
  • Underwear
    Patent number: D620227
    Type: Grant
    Filed: August 4, 2009
    Date of Patent: July 27, 2010
    Assignee: Spring & Associates, LLC
    Inventor: April Lynn Spring