Patents by Inventor Marvin L. Kline

Marvin L. Kline 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).

  • Double plectrum having a spacer filled with compressible fluid
    Patent number: 5253562
    Abstract: A double plectrum is provided having respective first and second body plates arranged coextensively relative to one another, having a spacer filled with compressible fluid replaceably mounted therebetween to permit varying of spacing between the first and second body plates during use of the organization in striking a stringed instrument.
    Type: Grant
    Filed: August 4, 1992
    Date of Patent: October 19, 1993
    Inventor: Marvin L. Kline