Patents by Inventor Christine Abbott

Christine Abbott 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: 5231118
    Abstract: The invention relates to a pressure-activatible correcting tape, which has a conventional carrier and a lift-off layer for removing typed or printed type images, the lift-off layer containing a wax, a binder and optionally further additives. This correcting tape is characterized in that the lift-off layer contains approximately 5 to 35% by weight of butyl rubber, approximately 30 to 90% by weight of wax and approximately 0.1 to 5% by weight of a dispersant having a dispersing action in an aqueous medium for the aforementioned substances. The lift-off layer can be produced by means of an aqueous coating liquid, which is environmentally advantageous compared with organic dispersants. This correcting tape can be used without restriction and independently of the type of typewriter.
    Type: Grant
    Filed: February 4, 1992
    Date of Patent: July 27, 1993
    Assignee: Caribonum Limited
    Inventors: Ian Hogarth, Andrew Scott, Christine Abbott, Robert I. Wilkinson