Patents by Inventor Robert S. Bartley

Robert S. Bartley 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).

  • False threadscrew and screwstrip
    Patent number: 6074149
    Abstract: A threaded fastener having a threaded shank with threads on a forward portion of the shank near the tip of greater size than threads on a rear portion of the shank. A collated screwstrip comprising a plastic holding strap holding a plurality of such fasteners in a row in spaced side-by-side relation with the holding strap in threaded engagement with the smaller rear thread portion of each fastener.
    Type: Grant
    Filed: June 30, 1999
    Date of Patent: June 13, 2000
    Assignee: G. Lyle Habermehl
    Inventors: G. Lyle Habermehl, Troy D. Hale, Robert S. Bartley