Patents by Inventor Sung-Choi Chang

Sung-Choi Chang 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: 4723301
    Abstract: A container having an access opening and a resealable sealing device, the latter consisting of a closure flap which is secured at one end region to the front side of the container and is coated with a pressure-sensitive adhesive to permit the container to be opened and resealed. A pair of cuts are formed in the flap to define a pair of tabs or fingers integral with the one end region of the flap, and a pair of tear prevention holes are formed at the ends of the cuts on the line of attachment of the body of the flap to the one end region thereof, all to prevent the flap from tearing away from the container. A non-adhesive member is cut out of the front side of the container to define the access opening and is adhesively secured to the coated face of the flap.
    Type: Grant
    Filed: February 3, 1986
    Date of Patent: February 2, 1988
    Inventor: Sung-Choi Chang