Liquid discharging method, liquid discharging head, liquid discharging apparatus, liquid container and head cartridge
CA 2186092 C · Owner: Okazaki, Takeshi · Inventors: Okazaki, Takeshi; Kudo, Kiyomitsu; Yoshihira, Aya
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
This specification discloses a liquid discharging method of using a head having a first liquid flow path communicating with a discharge port, a second liquid flow path having an air bubble creating area and a, movable member having a free end on the discharge port side and disposed between the first liquid flow path and the air bubble creating area, to create an air bubble in the air bubble creating area displace the, free end of the movable member on the basis of pressure by the creation of the air bubble, and direct the pressure to the discharge port side of the first liquid flow path by the displacement of the movable member to thereby discharge liquid, wherein the internal pressure of …
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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 August 15, 2000. 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.