Patents by Inventor Kenneth Ashcroft

Kenneth Ashcroft 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: 4011359
    Abstract: An interleaving material for separating glass sheets and protecting them from scratching and staining during storage or transit comprises a porous finely divided support material, such as wood flour, impregnated with a weakly acidic material such as an organic acid (e.g. adipic acid) or an acid reacting salt, and fine particles of a chemically inert plastics material, e.g. a methyl methacrylate, preferably of slightly larger particle size than the acid-impregnated support material.
    Type: Grant
    Filed: April 22, 1975
    Date of Patent: March 8, 1977
    Assignee: Pilkington Brothers Limited
    Inventors: Gordon Thomas Simpkin, Kenneth Ashcroft