Patents by Inventor Cassie Lawrence

Cassie Lawrence 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).

  • Single groove concrete jointer
    Patent number: D584586
    Type: Grant
    Filed: April 16, 2008
    Date of Patent: January 13, 2009
    Assignee: Lawrence Concrete, L.L.C.
    Inventors: David Lawrence, Cassie Lawrence
  • Triple groove concrete jointer
    Patent number: D584587
    Type: Grant
    Filed: April 16, 2008
    Date of Patent: January 13, 2009
    Assignee: Lawrence Concrete, L.L.C.
    Inventors: David Lawrence, Cassie Lawrence
  • Double groove concrete jointer
    Patent number: D585712
    Type: Grant
    Filed: April 16, 2008
    Date of Patent: February 3, 2009
    Assignee: Lawrence Concrete, L.L.C.
    Inventors: David Lawrence, Cassie Lawrence