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Expired Canadian patentCanada

Ink supply devices for portable labeling machine

CA 1097536 A · Owner: Kabushiki Kaisha Sato Kenkyusho · 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

An ink supply device for use in a labeling machine: the ink supply device includes at least one inking roller; guide means on the frame of the labeling machine guide the inking roller to roll over the printing surface of a printing head; the guide means may comprise curved slots in or rails on the side plates of the machine frame; guide rollers that support the inking rollers are received in the guide means; in another embodiment, there are additional bearing plates attached at both ends of an inking roller; these plates are engageable with the lower end surfaces of the printing head; in other embodiments, two inking rollers are provided; each such roller is biased and guided in a different …

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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 March 17, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 17, 1998.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledAugust 23, 1976
GrantedMarch 17, 1981
Term endedMarch 17, 1998
Patent numberCA 1097536 A
Classification (IPC)B65C11/02 +1 more

Timeline

Timeline From CIPO dates

19771980198319861989199219951998Application filedAug 23, 1976Patent grantedMarch 17, 1981Term endedMarch 17, 1998

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