Patents Examined by B. Hess
  • Sound deadener sheet
    Patent number: 4133932
    Abstract: A sound deadener sheet softenable by heat to wilt into conformity and adhesive engagement with a contoured metal surface but resistant to running and flow at higher temperatures comprising a mineral-filled bitumen containing a small amount of vulcanized vegetable oil.
    Type: Grant
    Filed: November 22, 1977
    Date of Patent: January 9, 1979
    Assignee: USM Corporation
    Inventor: Sumner H. Peck