Patents by Inventor E. Carl Fahnestock

E. Carl Fahnestock 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).

  • Quick music notes slide rule
    Patent number: 4677893
    Abstract: A Music Note Letter and Symbol Display Device which displays Music Note Letter compositions of Scales for each of the Fifteen (15) Major Keys of: C G D A E B F.music-sharp. C.music-sharp. C.music-flat. G.music-flat. D.music-flat. A.music-flat. E.music-flat. B.music-flat. and F and for each of the Fifteen (15) Minor Keys of: A E B F.music-sharp. C.music-sharp. G.music-sharp. D.music-sharp. A.music-sharp. A.music-flat. E.music-flat. B.music-flat. F C G D.The device also displays Sixteen (16) Types of Chords for each of the Fifteen (15) Chord Letters of: C G D A E B F.music-sharp. C.music-sharp. C.music-flat. G.music-flat. D.music-flat. A.music-flat. E.music-flat. B.music-flat. and F.The device can also be used to make musical transpositions from one Key/Scale/Chord to another and is used to identify the Music Note Letter compositions of twelve (12) Intervals for each of the Fifteen (15) Major Keys of: C G D A E B F.music-sharp. C.music-sharp. C.music-flat. G.music-flat. D.music-flat. A.music-flat. E.music-flat.
    Type: Grant
    Filed: July 11, 1985
    Date of Patent: July 7, 1987
    Inventor: E. Carl Fahnestock