Patents by Inventor William J. Carrigan

William J. Carrigan 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).

  • Patent number: 4319379
    Abstract: An accessory for a vacuum cleaner, for pickup pet hairs and lint from rugs, furniture and clothing, the accessory including a sheet of conventional plush or velveteen material made of plastic and such that the fibers thereof stand up and rake when moved in one direction across a surface, and the sheet being adhered to a stiff backing board which, by means of prongs on its rear side, snaps on to a vacuum cleaner head.
    Type: Grant
    Filed: April 29, 1980
    Date of Patent: March 16, 1982
    Inventors: William J. Carrigan, George Spector