Device for use in braille printing or paperless braille communication
CA 2037388 A1 · Owner: Galarneau, Roland · Inventors: Galarneau, Roland
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A device for forming Braille characters for tactile sensation or impression onto an embossable substrate includes a substantially block-like main body. At least one array of six Braille printing pins is contained in the block in a 2 X 3 Braille cell configuration. Each said pin is contained in a first cylindrical bore and is movable between a retracted position whereby it does not protrude from the block, and an extended position whereby the tip of the pin protrudes from the block. Means are associated with each said pin for maintaining each pin in an extended position.
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
- Filed March 1, 1991. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 1, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 1, 2013.
- 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.