Patents by Inventor Alex M. Vagias

Alex M. Vagias 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).

  • Thermoplastic key face for pianos or the like
    Patent number: 4346639
    Abstract: A key cover plate for a piano or the like is injection-molded thermoplastic material marbleized by incomplete mixing of a color agent. The cover plate simulates the grain of natural ivory and has a Munsell hue of between 4.5Y to 8.8Y to 6.6YR. The cover plate also has a Munsell chroma of between 1.0 to 2.6 and a Munsell value of between 8.3 to 9.3. A contrast ratio of the plastic ivory material is between 70 to 90.
    Type: Grant
    Filed: July 27, 1981
    Date of Patent: August 31, 1982
    Assignee: Ernest Vagias
    Inventor: Alex M. Vagias