Ink jet recording apparatus and ink cartridge usable therewith
CA 2052243 C · Owner: Kurata, Tetsuji · Inventors: Terasawa, Koji; Takemura, Makoto; Shinoda, Kazuhiko
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An ink jet recording apparatus usable with an ink cartridge includes an ink cartridge mounting passage; a plate for blocking the ink cartridge mounting passage; a limiting member for preventing opening of the plate; wherein the limiting member is disposed at each lateral end portion so that they are arranged in a chevron shape with upward inclination and wherein when the ink cartridge is inserted in the ink cartridge passage, the limiting members are contacted to a front surface of the ink cartridge and are simultaneously rotated externally to release the blocking plate.
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 September 25, 1991 and granted June 1, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 25, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 25, 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.