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Expired Canadian patentCanada

Molded bottle removal apparatus and method

CA 2068258 C · Owner: Bruning, Karl H. · Inventors: Bruning, Karl H.

CIPO record

Overview

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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 improved part removal assembly (17) particularly for a shuttle-type blow molding machine (10) is described. The part removal assembly includes a plurality of suction cups (95) mounted on a vertically moveable piston (87) that travels along a vertically oriented rodless cylinder (81) and a plurality of suction cups (115) mounted on a horizontally moveable piston (107) that travels along a horizontally oriented rodless cylinder (83). A mold assembly (15) shuttles between an extruder head assembly (11) where a plurality of parisons of molten plastic are captured in mold cavities (25) in the mold assembly, and a blow station assembly (13) where the parisons are blown to form a molded …

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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

  • Filed May 8, 1992 and granted October 25, 1994. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 8, 2012.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 8, 2014.
  • 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 8, 1992
GrantedOctober 25, 1994
Term endedMay 8, 2012
Patent numberCA 2068258 C
Classification (IPC)B29C49/70 +2 more

Timeline

Timeline From CIPO dates

1993199519971999200120032005200720092011Application filedMay 8, 1992Patent grantedOct 25, 1994Term endedMay 8, 2012

Sources & verification

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