Patents by Inventor Burton Farbstein

Burton Farbstein 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).

  • Low cost coated abrasives
    Patent number: 5782939
    Abstract: Substantial cost saving can be realized in a coated abrasive structure employing a plurality of layers of particulate material, if at least one of the under-layers of particles is provided by a layer of ground glass.
    Type: Grant
    Filed: August 8, 1997
    Date of Patent: July 21, 1998
    Assignee: Norton Company
    Inventors: Burton Farbstein, Bernard Loughlin, Christopher Gruel