Patents Represented by Law Firm Alexander
  • Compressible printing blanket
    Patent number: 3983287
    Abstract: A printing blanket especially suited for use in offset lithography is provided by permanently laminating together an oil-resistant continuous rubber ink transfer layer, a strong thin tough synthetic foundation sheet, and a layer of incompressible elastomer having dispersed and bonded therein numerous minute frangible rigid-walled bubbles that have been broken uniformly throughout the elastomer layer to make it compressible.
    Type: Grant
    Filed: November 22, 1971
    Date of Patent: September 28, 1976
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Charles G. Goossen, Stanley G. Peterson