Patents by Inventor Eugene Roark

Eugene Roark 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).

  • Plastic film wrapper
    Patent number: 4053046
    Abstract: A sealed overlapping edge portion of a tearable plastic film envelope is embossed with a series of closely adjacent grooves which guide a tear across the seal.
    Type: Grant
    Filed: July 29, 1976
    Date of Patent: October 11, 1977
    Assignee: Jno H. Swisher & Son, Inc.
    Inventor: Eugene Roark