Electronic keyboard display device
CA 1096609 A · Owner: Hill, Minard G. · Inventors: Laflamme, Daniel
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A small lightweight electronic devise to indicate the note of a keyboard instrument represented by any musical interval in any key. The device has a serious of on-off switches representing each of the desired musical keys and a series of switches representing the individual values of musical interval's over a desired range, preferably two octaves. The necessary circuitry is provided between these switches and a keyboard display such that any particular note represented by a musical interval of selected value in a selected key is indicated on the keyboard display. Students and teachers of music for keyboard instruments can, using this device, visualize the location of notes or chords in any …
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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Granted March 3, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 3, 1998.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.