Rewritable printing method and its printer
CA 2446827 A1 · Owner: Sanwa Newtec Co. Ltd. · Inventors: Niino, Koji; Ando, Ritsuo; Matsumura, Yoshitaka
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A rewritable printing method and its printer in which rewriting is performed repeatedly using a thermal medium coated with a leuco based paint printing is , performed similarly to a conventional method the medium can be utilized , easily as means for transmitting information and environmental problem , incident to use of paper can be improved significantly. In a print processor (1), a thermal medium (10) set at a sheet setting section (21) is moved to the print processing section (3) side by means of a sheet feed roller (33) and character information is printed thereon by means of a print head (31). On the other hand, a printed thermal medium (10) set at a sheet receiving section (23) …
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 February 12, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 12, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 12, 2024.
- 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.