Liquid ejection method and liquid ejection head therefor
CA 2186073 C · Owner: Kudo, Kiyomitsu · Inventors: Kudo, Kiyomitsu; Kashino, Toshio; Okazaki, Takeshi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A Liquid ejecting method for ejecting liquid using a bubble includes using a liquid ejecting head having an ejection outlet for ejecting the liquid a bubble generating region where a bubble is generated in the liquid a movable member which is disposed faced to the bubble generating region and which is displaceable between a first position and a second position farther from the bubble generating region than the first position and which has a free end at a downstream side thereof; displacing the movable member from the first position to the second position by pressure based on generation of the bubble in the bubble generating region wherein the bubble expands more to the downstream side than …
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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 20, 1996 and granted April 17, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 20, 2016.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 20, 2018.
- 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.