Thermal printer
CA 2039896 C · Owner: Nakamura, Hisashi · Inventors: Namura, Koji; Fukumoto, Hiroshi; Fukazawa, Keiichi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A thermal printer comprises: a platen roller on which a recording sheet is wound in such a manner that said recording sheet is laid over an angular part of the cylindrical wall of said platen roller, said plate roller conveying said recording sheet in a predetermined direction; a thermal head pushed against said platen roller, to heat heating points selected for transferring ink from an ink sheet onto said recording sheet; sheet pulling means for pulling said recording sheet in said predetermined direction; a pinch roller on the sheet supplying side, for pushing said recording sheet against said platen roller with a predetermined force of depression so that said recording sheet is wound on …
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 April 5, 1991 and granted May 14, 1996. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 5, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 5, 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.