Patents by Inventor J. Chalmers Doane

J. Chalmers Doane 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: 4041830
    Abstract: This invention is directed to a ukelele that is relatively simple yet sturdy in construction, produces a superior tone, is easy to hold and play, easy to tune, remains in tune for extended periods of time, and is useful in teaching people to play stringed instruments of the type where the strings are plucked to produce a musical tone. The sound box, in plan view, is constructed in the shape of a right angle triangle. The sound box has three circular sound openings positioned in a triangular pattern on the top surface of the sound box. The neck of the ukelele extends a substantial distance into the sound box. The strings of the ukelele pass through two sets of holes in the tuning head before being wound onto the tuning pegs.
    Type: Grant
    Filed: September 18, 1975
    Date of Patent: August 16, 1977
    Inventor: J. Chalmers Doane