Patents by Inventor Irving Cann

Irving Cann 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).

  • Synthetic onyx and method
    Patent number: 4343752
    Abstract: A synthetic onyx material and method of preparation having veined coloring marks, within a matrix, in a smoothly flowing, variegated pattern resembling the flow of colored contaminants in natural onyx; the patterns are in juxtaposed portions revealing an optical boundary.
    Type: Grant
    Filed: August 22, 1980
    Date of Patent: August 10, 1982
    Inventor: Irving Cann