Patents by Inventor Margaret K. Demetre

Margaret K. Demetre 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).

  • Insecticidal paste including powdered boric acid
    Patent number: 4988511
    Abstract: An insecticidal paste that adheres, hardens and remains on hard surfaces in hidden and out of the way places and is composed in a delicately balanced combination of a mixture of sugar, milk solids, butter fat, water and a green pigment of liquid food coloring with a powdered form of boric acid in 100 to 400 mesh keeping away all others indefinitely.
    Type: Grant
    Filed: May 29, 1990
    Date of Patent: January 29, 1991
    Inventor: Margaret K. Demetre