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Expired Canadian patentCanada

Continuous multi-layered packaging assembly

CA 1047451 A · Owner: Pako Corporation · Inventors: Getsch, Edward W.; Puerner, Gale N.

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

This is a continuous elongated multi-layer web assembly having outer cover layers and intermediate divider layers connected along one longitudinal edge portion thereof and specifically adapted for automatic separate packaging of developed film negatives, prints and other materials for the ultimate consumer while providing individual pockets for the prints, negatives, and other materials and having spaced apart transverse severance line areas defining individual multi-pocketed packaging envelopes wherein portions of intermediate divider layers along said severance line areas are cut out to permit face to face sealing contact between the outer cover layers to define each package and also …

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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 January 30, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 30, 1996.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Filed—
GrantedJanuary 30, 1979
Term endedJanuary 30, 1996
Patent numberCA 1047451 A
Classification (IPC)B65D27/10 +2 more

Timeline

Timeline From CIPO dates

198019821984198619881990199219941996Patent grantedJan 30, 1979Term endedJan 30, 1996

Sources & verification

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