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Expired Canadian patentCanada

Apparatus for forming a convoluted container sidewall

CA 1069365 A · Owner: Phillips Petroleum Company · Inventors: Farfaglia, Silvio T.

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

Abstract of the Disclosure, Apparatus for wrapping a sidewall blank about a mandrel utilizing two wrapping wings which are rotated about the mandrel axis by respective drive trains, each drive train comprising a shaft positioned coaxially with the mandrel a lever arm connecting, the wrapping wing to the shaft a slide member positioned in a trans-, versely extending slot in a common reciprocating carriage and a, crank arm secured to the shaft and pivotably connected to the slide member. One of the wiping wings can be provided with an L-shaped blade with one leg of the L-shaped blade extending forwardly in the direction of travel of that wiping wing during the wrapping operation to lead the …

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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 8, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 8, 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.
Filed—
GrantedJanuary 8, 1980
Term endedJanuary 8, 1997
Patent numberCA 1069365 A
Classification (IPC)B31B50/28 +1 more

Timeline

Timeline From CIPO dates

198119831985198719891991199319951997Patent grantedJan 8, 1980Term endedJan 8, 1997

Sources & verification

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