Patents by Inventor Judy Anne MacArthur

Judy Anne MacArthur 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).

  • Animal euthanasia
    Patent number: 4107818
    Abstract: A method of euthanasia for small animals, particularly cats, involving inducing hypoxia using a mixture of carbon dioxide and oxygen prior to gassing with carbon dioxide. The initial mixture contains not less than 40% carbon dioxide and not more than 50% oxygen. The apparatus consists of a lidless double chamber with valved gas supplies to the separate chambers.
    Type: Grant
    Filed: December 7, 1976
    Date of Patent: August 22, 1978
    Assignee: Universities Federation for Animal Welfare
    Inventors: Walter Norris Scott, Judy Anne MacArthur