Ink jet apparatus capable of practicing and improved recovery operation
CA 2079727 C · Owner: Canon Kabushiki Kaisha · Inventors: Kaneko, Mineo
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An ink jet apparatus performs recording by ejecting from the head portion the ink which is contained in an exchangeable ink jet cartridge for the apparatus to form desired images on a recording medium. The apparatus performs suction recovery operation for the head portion in the non-installation state where the ink jet cartridge is removed from the apparatus. With this suction recovery, all the ink in the ink passage from the installation portion for the ink jet cartridge to the recording head is exhausted from the head portion; hence making it possible to remove bubbles remaining in ink totally and easily without any additional components and any resultant contamination in the nozzles …
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 October 2, 1992 and granted April 7, 1998. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 2, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 2, 2014.
- 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.