Patents by Inventor Donald M. Chisholm

Donald M. Chisholm 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).

  • Moulded product
    Patent number: 4497662
    Abstract: A process of moulding a product (and a product thus formed) wherein particulate ligno-cellulose such as shredded paper, flour, Portland cement, a small amount of caustic soda, and water are mixed together, placed in a mould, and subjected to both pressure and heat until set, and the moulded product is then removed from the mould.
    Type: Grant
    Filed: February 22, 1983
    Date of Patent: February 5, 1985
    Assignee: Douglas Ross Fleet
    Inventors: Donald M. Chisholm, Colin Newton, Stanley W. Winchester