Patents by Inventor Marcus Cantarano

Marcus Cantarano 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: 3956523
    Abstract: Method for producing electrographic images from an original provided with a conductivity pattern ranging from a portion having a greater conductivity to a portion having a lesser conductivity, said conductivity pattern being affixed to an insulating backing material, comprising the steps of coating said conductivity pattern with a thin layer of electrically chargeable particles, disposing an insulating layer against said conductivity pattern, so that said layer of electrically chargeable particles is located between said conductivity pattern and said insulating layer, generating an electric field of sufficient strength across said insulating layer, said layer of electrically chargeable particles, said conductivity pattern and said insulating backing so as to transfer electric charges from said conductivity pattern to said electrically chargeable particles whereby a portion of said particles are sufficiently charged and removed from said conductivity pattern and the remainder of said particles are insufficient
    Type: Grant
    Filed: January 9, 1974
    Date of Patent: May 11, 1976
    Inventor: Marcus Cantarano
  • Patent number: 3931627
    Abstract: Electrographic devices and apparatus comprising an original provided with a conductivity pattern ranging from a portion having a greater conductivity to a portion having a lesser conductivity, means for placing a thin layer of electrically chargeable particles in electric contact with said conductivity pattern, and means for generating an electric field of sufficient strength across said layer of electrically chargeable particles and said conductivity pattern so as to transfer electric charges from said conductivity pattern to said electrically chargeable particles so that said particles receive electric charges having different maximum values according to the different conductivities of said portions of said conductivity pattern whereby a portion of said particles are sufficiently charged and removed from said layer of electrically chargeable particles and the remainder of said particles are insufficiently charged so that they continue to remain in said particles layer thereby producing a stable electrograph
    Type: Grant
    Filed: January 7, 1974
    Date of Patent: January 6, 1976
    Inventor: Marcus Cantarano