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Expired Canadian patentCanada

Constant pressure printing mechanism for portable label printing machine

CA 1092435 A · Owner: Kabushiki Kaisha Sato · Inventors: Sato, Yo

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

A constant pressure printing mechanism for a portable label printing machine, or the like comprising, a driving member which is disposed on either the movable hand lever or the stationary hand grip of the label printing machine and a pressure receiving member which is disposed on the other of the hand lever or the hand grip. The invention uses stored energy derived from a manual squeezing operation to produce the printing stroke independently of the intensity and duration of a manual squeeze. In one form, the driving member comprises a movable roller, a guiding means to allow the movable roller to move therethrough and an elastic means which always urges the movable roller in one direction …

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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 December 30, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 30, 1997.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMay 26, 1978
GrantedDecember 30, 1980
Term endedDecember 30, 1997
Patent numberCA 1092435 A
Classification (IPC)B41K1/36 +2 more

Timeline

Timeline From CIPO dates

1979198119831985198719891991199319951997Application filedMay 26, 1978Patent grantedDec 30, 1980Term endedDec 30, 1997

Sources & verification

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