Ink tank and ink jet recording apparatus provided with the same
CA 2453847 A1 · Owner: Ishinaga, Hiroyuki · Inventors: Ishinaga, Hiroyuki; Inoue, Ryoji; Mochizuki, Muga
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An ink tank is provided which can efficiently perform detection of information in an ink tank such as an ink residual amount in the ink tank with a simple configuration in which it is unnecessary to set wiring or the like. A solid semiconductor element which is, provided with an acquiring unit for acquiring environmental information of the outside an, information storing unit, a discriminating unit for comparing acquired information and stored information to make a determination, and an information communicating unit for displaying the acquired information or communicating the acquired information to the outside, is embedded in an outer wall of an ink tank such that the solid semiconductor …
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 June 13, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended June 13, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 13, 2023.
- 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.