Patents by Inventor Chungkil Shin

Chungkil Shin 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).

  • Footwear string end tightening acetate tube
    Patent number: 5832574
    Abstract: A footwear string end tightening acetate tube which is made of a transparent cellulose acetate film and is inserted to prevent both end portions of a footwear string weave from being loose, the tube including: an arbitrary advertising character or picture screen-printed on the one side or both sides of the interior of the tube by using a polyurethan two-liquid hardening ink; a solvent-resisting coating layer formed on the upper surface of the printed advertising character or picture; and a semicircular groove formed in the vicinity of the end portion of the string in a hot press manner.
    Type: Grant
    Filed: September 10, 1997
    Date of Patent: November 10, 1998
    Inventor: Chungkil Shin
  • Footwear string
    Patent number: D406692
    Type: Grant
    Filed: September 10, 1997
    Date of Patent: March 16, 1999
    Inventor: Chungkil Shin