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Expired Canadian patentCanada

An edge-shooter ink-jet print head and a procedure for manufacturing this

CA 2129182 C · Owner: Thiel, Wolfgang · Inventors: Thiel, Wolfgang

CIPO record

Overview

Drawings and full text

Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

An edge-shooter ink-jet print head that incorporates a nozzle row in the z direction on the edge of a module and which makes it possible to expel an ink jet in the x direction with a, plurality of plates that are arranged in the y direction incorporates equal ink path lengths for at least one module. According to the present invention the nozzle row lies in a part, and which has chamber forming parts that are additionally incorporated. After the production of various module plates by parallel processing of a glass plate, including the formation of cavities of a defined depth by etching and fine grinding this is, followed by separation and joining of the individual parts to form a module …

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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 July 29, 1994 and granted October 31, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 29, 2014.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 29, 2016.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJuly 29, 1994
GrantedOctober 31, 2000
Term endedJuly 29, 2014
Patent numberCA 2129182 C
Classification (IPC)B41J2/13

Timeline

Timeline From CIPO dates

1995199719992001200320052007200920112013Application filedJuly 29, 1994Patent grantedOct 31, 2000Term endedJuly 29, 2014

Sources & verification

Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.