Ink cartridge and loading mechanism for the ink cartridge
CA 2209866 C · Owner: Igarashi, Hitoshi · Inventors: Miyazawa, Hisashi; Kobayashi, Takao; Yoshida, Masanori
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Reinforcing ridges are formed so as to project from corner portions of peripheral walls and an opening end edge is made thick-walled so that an ink cartridge having a sufficient rigidity can be molded using polypropylene that is not air- permeable but that is soft. In addition shape keeping ribs are formed so as to project from the outer sides of longitudinal ribs that are formed on an inner surface of a cover body so that deformation of the cartridge can be suppressed during vibration welding. Further a support rod is engaged with a engaging recess-arranged in a lower surface of an ink cartridge and a carriage cover body is closed while guiding a lifter with a guide groove that in parallel …
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 July 4, 1997 and granted December 9, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 4, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 4, 2019.
- 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.