Ink-jet cartridge
CA 2286955 A1 · Owner: Lin, Fu-San · Inventors: Chou, Chin-Yi; Mou, Tse-Chi; Lin, Fu-San
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention is about an ink jet cartridge for thermal bubble ink jet printers, which comprises: a housing, for containing the necessary printing ink for the printer; a, printhead, having a plurality of opening orifices through which ink may , stream forth unto paper upon demand; and a pressure-adjustment means having a hollow tube for , receiving, ink therewithin and one end of which having a ventilation opening for contact with the, atmosphere and the other end thereof having at least one opening for contact with the ink, wherein said ventilation opening of the pressure-adjustment means being fixed onto the, housing of the ink jet cartridge and said opening being positioned …
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 20, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 20, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 20, 2021.
- 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.