Braille teaching apparatus
CA 1306863 C · Owner: Murphy, Kevin C. · Inventors: Murphy, Kevin C.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An apparatus for teaching Braille letters words and sentence, structure is disclosed. The present invention provides the construction of a number of blocks, each containing the appropriate dot arrangement on its surface to represent a Braille character sound, or word. The Braille blocks are similar in construction to a two by three matrix Lego TM brand building block. However the, two by three matrix of dots is altered such that the dots on a block are representative of a Braille character. The present invention also involves the structure of a rigid board upon which the Braille blocks may be affixed. This board allows for the creation of words and sentences upon its surface. The board also …
Read the whole patent
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 September 1, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 1, 2009.
- 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.