Patents by Inventor Andrew D. Fraser

Andrew D. Fraser 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).

  • Package opening system
    Patent number: 4720423
    Abstract: A multilayer strip having an adhesive between layers, the adhesive containing frangible microcapsules carrying a fragrant liquid therein, can be used as a tear strip for a package overwrap. Upon pulling the outward layer of said strip, the overwrap is opened and the fragrance is released.
    Type: Grant
    Filed: August 25, 1986
    Date of Patent: January 19, 1988
    Assignee: Minnesota Mining and Manufacturing Company
    Inventor: Andrew D. Fraser