Printing apparatus, and facsimile apparatus using the same
CA 2023356 C · Owner: Shimonaga, Sadaaki · Inventors: Shimonaga, Sadaaki
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A printing apparatus prints image on thermosensible paper by means of thermosensible elements (H1 to Hn). When printing data is supplied from a central processing circuit (28) to a printing data correcting circuit (52) the printing data correcting circuit performs signal processing referring to printing data supplied in response to shifting operation of a shift register (S). The printing data is latched in a latch circuit (53) for each printing operation and the latched printing data is stored in the shift register and supplied to the thermosensible elements, whereby the printing data is printed on the thermosensible paper driven by a pulse motor (57).
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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
- Filed August 15, 1990 and granted November 1, 1994. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 15, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 15, 2012.
- 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.