Patents by Inventor John Lindsay Dingwall

John Lindsay Dingwall 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).

  • Compost container
    Patent number: D248611
    Type: Grant
    Filed: November 26, 1976
    Date of Patent: July 25, 1978
    Assignee: Moulded Components and Roto Moulding South Africa (Proprietary) Limited
    Inventor: John Lindsay Dingwall