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Expired Canadian patentCanada

Apparatus for printing with ink jet chambers utilizing a plurality of orifices

CA 1291364 C · Owner: Dataproducts Corporation · Inventors: Rogers, Robert L.

CIPO record

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

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Abstract From the Canadian patent

An impulse ink jet apparatus (FIG. 4) comprising a plurality of side-by-side chambers (32 FIG. 5) extending along a line slanted (angle "A") with respect to a direction of scanning. Each of the chambers include a plurality of orifices (24) arranged along a line extending substantially transverse (e.g. vertical) to the scanning direction and means are provided (transducers 44) for ejecting a plurality of droplets from the orifices of each chamber.

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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

  • Granted October 29, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 29, 2008.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledNovember 26, 1986
GrantedOctober 29, 1991
Term endedOctober 29, 2008
Patent numberCA 1291364 C
Classification (IPC)B41J2/00 +2 more

Timeline

Timeline From CIPO dates

19871990199319961999200220052008Application filedNov 26, 1986Patent grantedOct 29, 1991Term endedOct 29, 2008

Sources & verification

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