Patents by Inventor Mac Karlan

Mac Karlan 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).

  • Method of and article for masking
    Patent number: 3942621
    Abstract: Pellucid carrier sheet having opaque coherent film masking elements releasably secured on the rear surface and pressure responsive means on the rear surface of such elements for enabling transfer thereof through pressure application, as by rubbing with a stylus, to mask and cover errors, or the like, for correction and methods of use thereof.
    Type: Grant
    Filed: April 28, 1970
    Date of Patent: March 9, 1976
    Inventor: Mac Karlan