Patents by Inventor Norma Abigania Avanzado

Norma Abigania Avanzado 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 creating a replicating matrix
    Patent number: 3954469
    Abstract: A video disc master of glass, having a metal surface with microscopic apertures therein representing information, is coated with a commercial photosensitive resist, the sensitivity of which has been enhanced. The resist is uniformly exposed through the glass disc. The unexposed resist is removed using conventional developers to which a surfectant is added. The resulting disc has surface irregularities of predetermined height which can be alternatively used to product "stampers" for embossing replicas or to produce a mold for casting replicas.
    Type: Grant
    Filed: October 1, 1973
    Date of Patent: May 4, 1976
    Assignee: MCA Disco-Vision, Inc.
    Inventors: Norma Abigania Avanzado, Manfred H. Jarsen, Csaba K. Hunyar