WO2012172312A1 - Couvercle amovible - Google Patents

Couvercle amovible Download PDF

Info

Publication number
WO2012172312A1
WO2012172312A1 PCT/GB2012/051293 GB2012051293W WO2012172312A1 WO 2012172312 A1 WO2012172312 A1 WO 2012172312A1 GB 2012051293 W GB2012051293 W GB 2012051293W WO 2012172312 A1 WO2012172312 A1 WO 2012172312A1
Authority
WO
WIPO (PCT)
Prior art keywords
lid
score line
removable lid
button
vacuum
Prior art date
Application number
PCT/GB2012/051293
Other languages
English (en)
Inventor
Chris Ramsey
Lenneke Koopmans
Original Assignee
Crown Packaging Technology, Inc.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Crown Packaging Technology, Inc. filed Critical Crown Packaging Technology, Inc.
Priority to PL12729696T priority Critical patent/PL2720960T3/pl
Priority to US14/125,821 priority patent/US20140103044A1/en
Priority to CA2838248A priority patent/CA2838248A1/fr
Priority to EP12729696.0A priority patent/EP2720960B1/fr
Publication of WO2012172312A1 publication Critical patent/WO2012172312A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D51/00—Closures not otherwise provided for
    • B65D51/16—Closures not otherwise provided for with means for venting air or gas
    • B65D51/1672—Closures not otherwise provided for with means for venting air or gas whereby venting occurs by manual actuation of the closure or other element
    • B65D51/1677—Closures not otherwise provided for with means for venting air or gas whereby venting occurs by manual actuation of the closure or other element by rupturing a portion of the closure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D43/00—Lids or covers for rigid or semi-rigid containers
    • B65D43/02—Removable lids or covers
    • B65D43/0202—Removable lids or covers without integral tamper element
    • B65D43/0225—Removable lids or covers without integral tamper element secured by rotation
    • B65D43/0231—Removable lids or covers without integral tamper element secured by rotation only on the outside, or a part turned to the outside, of the mouth of the container
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2251/00—Details relating to container closures
    • B65D2251/01—Details relating to container closures making a sound upon actuation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2543/00—Lids or covers essentially for box-like containers
    • B65D2543/00009—Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00018—Overall construction of the lid
    • B65D2543/00064—Shape of the outer periphery
    • B65D2543/00074—Shape of the outer periphery curved
    • B65D2543/00092—Shape of the outer periphery curved circular
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2543/00—Lids or covers essentially for box-like containers
    • B65D2543/00009—Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00018—Overall construction of the lid
    • B65D2543/00259—Materials used
    • B65D2543/00277—Metal
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2543/00—Lids or covers essentially for box-like containers
    • B65D2543/00009—Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00342—Central part of the lid
    • B65D2543/0037—Flexible or deformable
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2543/00—Lids or covers essentially for box-like containers
    • B65D2543/00009—Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00342—Central part of the lid
    • B65D2543/00398—Reinforcing ribs in the central part of the closure
    • B65D2543/00416—Reinforcing ribs in the central part of the closure circular
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2543/00—Lids or covers essentially for box-like containers
    • B65D2543/00009—Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00444—Contact between the container and the lid
    • B65D2543/00481—Contact between the container and the lid on the inside or the outside of the container
    • B65D2543/00537—Contact between the container and the lid on the inside or the outside of the container on the outside, or a part turned to the outside of the mouth of the container
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2543/00—Lids or covers essentially for box-like containers
    • B65D2543/00009—Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00824—Means for facilitating removing of the closure
    • B65D2543/00833—Integral tabs, tongues, handles or similar
    • B65D2543/00851—Integral tabs, tongues, handles or similar on the central part of the lid
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
    • B65D81/18—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents providing specific environment for contents, e.g. temperature above or below ambient
    • B65D81/20—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents providing specific environment for contents, e.g. temperature above or below ambient under vacuum or superatmospheric pressure, or in a special atmosphere, e.g. of inert gas
    • B65D81/2007—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents providing specific environment for contents, e.g. temperature above or below ambient under vacuum or superatmospheric pressure, or in a special atmosphere, e.g. of inert gas under vacuum
    • B65D81/2015—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents providing specific environment for contents, e.g. temperature above or below ambient under vacuum or superatmospheric pressure, or in a special atmosphere, e.g. of inert gas under vacuum in an at least partially rigid container

Definitions

  • the present invention relates to a removable lid of the type that may be applied to and removed from a foodstuff container by a twisting action, and where the container is packed such that a negative pressure exists within the container with respect to the external pressure. More particularly, this invention relates to a removable lid that is easier to remove from the container.
  • Twist-off removable lids are often used with containers in order to provide a hermetic seal for holding foodstuffs such as cooking sauces, preserves and the like.
  • lids are formed of a metallic body, usually steel, with a circular top surface and skirt portion. Threads or lugs are incorporated into the inside of lid to compliment a corresponding helical thread on the outside of the top of the container to be closed.
  • the container may be "vacuum sealed” so improve the seal between the lid and the body.
  • the lid may then be removed by a consumer by twisting the lid to unscrew it from the container.
  • a flexible “vacuum button” may be formed in the lid to provide an indication that the vacuum is present.
  • a removable lid for use with a food-storage container, the lid having a user-actuable vacuum-release button comprising: at a first level, a raised surface for contact with a user's finger; at a second level, lower than the first level, a curved score line adjacent to said raised surface; and at a third level, being intermediate between said first and second levels, a surface adjacent to said curved score line on the other side from said raised surface.
  • Embodiments of the present invention provide an easy-to-use, integrated solution that, when in use, allows consumers to more easily remove lids from containers, without the need for separate utensils or for carrying out potentially unsafe methods.
  • the curved score line may be such that the user-actuable vacuum-release button can be actuated to fracture along the score line by finger pressure.
  • the length of curved score line may be less than 2cm.
  • the lid may further comprise a centrally located pop-up button to indicate whether or not a vacuum is present, and said curved score line is located radially outward of the button.
  • the surface of the lid proximate to the curved score line may be decorated and contain an embossed pattern, which may comprise ridges formed in the material of the lid. Also, the surface of the lid within the curved score line may be raised to form a button.
  • the force required to actuate the vacuum-release button may be between 10N and 40N, and it may be 20N. Too small a force may lead to accidental opening in transit or capping and too great a force will make the button difficult to open.
  • the lid may further comprise one or more formations or lugs for engaging screw threads on the food-storage container.
  • the curved score line may be formed by laser scoring, or by mechanical scoring, and the depth of the curved score line may extend between 50% and 100% through the thickness of the lid.
  • the thickness of the lid may be substantially 0.16mm, and the curved score line may cut the thickness to substantially 0.02mm.
  • the material of the lid at the point of the score line may be reduced to a depth of less than 50 microns, and it may be reduced to a depth of around 20 microns
  • the depth of the curved score line may extend 100% through the thickness of the lid.
  • a sealing compound may be provided on the underside of the removable lid underneath the user-actuable vacuum-release button.
  • the sealing compound may peel away from part of the lid during actuation of the vacuum-release button to expose an opening.
  • the removable lid may be substantially metal, for example it may be substantially steel.
  • a product comprising a food-storage container and a removable lid as described in any of the previous statements.
  • the interior of the container may be at a negative pressure with respect to the atmosphere such that the removable lid is removably sealed to the food-storage container by a pressure differential.
  • a removable lid for use with a food-storage container, the lid having a user-actuable vacuum-release button provided by a curved score line.
  • Figure 1 shows a perspective view of a removeable lid according to an embodiment of the invention
  • Figure 2 shows an enlarged cross-sectional detail of the score line in the removable lid of Figure 1 ;
  • Figure 3 shows a perspective view of the removable lid of Figure 1 attached to a container
  • Figure 4 shows a perspective view of a removable lid according to another embodiment of the invention.
  • Figure 5 shows an enlarged cross-sectional detail of the embodiment of Figure 4.
  • Figures 6a and 6b show a perspective view of a removable lid according to a further embodiment of the invention from above and below respectively;
  • Figure 7 shows an enlarged cross-sectional detail of the user-actuated vacuum-release button of the embodiment of Figures 6a and b;
  • Figures 8a and 8b show enlarged cross-sectional details of the user-actuated vacuum- release button of Figure 7 before and after a force is applied.
  • a removable lid will now be described with reference to the figures that can overcome this difficulty by allowing the consumer to first easily release the vacuum within the container before attempting to twist off the lid. This is facilitated by providing a weakened score line on the top surface of the lid.
  • the score line is generally curved, e.g. arcuate, in shape to match the shape of a finger tip, and can take the form of an arc segment.
  • Figure 1 shows a perspective view from above of a removable lid 1 comprising a top surface 2 that is circular in shape, and a "skirt" 3 that extends down from the edges of the top surface 2.
  • the top surface 2 and the skirt 3 together form an interior recess underneath the lid, and the inside walls of the skirt 3 comprise a helical thread that engages with a corresponding helical thread on a container.
  • a full helical thread being formed into the lid, there may be a number of formations or lugs that engage with helical threads on the container.
  • the lid 2 is intended to be used with vacuum-sealed foodstuff containers, for example glass mason jars used to contain cooking sauces, preserves or similar.
  • the lid will typically be made of steel.
  • the lid hermetically seals the jar with a negative pressure (“vacuum") inside to strengthen the seal and possibly aid in the preservation of the food.
  • the top surface 2 comprises a "pop-up" button 4 formed as part of the top surface. If there is a vacuum inside the jar then the pop-up button 4 remains depressed.
  • Figure 1 also shows a curved score 5 on the top surface 2 of the lid.
  • This score provides a weakened line in the steel of the lid that can be broken when a force is applied to it.
  • the score is made in the top surface during manufacture of the lid, and is made off-centre such that it doesn't overlap with the pop-up button 4. In this way, pressing the pop-up button 4 will not fracture the curved score line 5.
  • the score can be formed, examples of which are laser scoring, machining, or mechanical scoring (e.g.
  • an embossment pattern that comprises ridges formed into the top surface of the lid. This embossment pattern acts as an indicator to the consumer where best to place a finger in order to apply pressure to the score line and fracture it.
  • Figure 2 shows an enlarged section of the top surface 2 containing the score line 5 in cross-section, taken perpendicular to the score line.
  • the thickness of the steel is around 0.16mm.
  • the thickness of the steel indicated by the distance ⁇ , will be reduced to about 0.02mm.
  • a can be a thickness in the range 0.10 to 0.3mm, and ⁇ can be between 0.005 and 0.1 mm.
  • FIG 3 shows the lid 1 as shown in Figure 1 attached to a jar 10.
  • Arrows A to C indicate the events that take place when a consumer first opens the jar. Initially the jar is unopened, therefore the vacuum within is intact and the pop-up button 4 has not been released. The consumer first applies a force A to the area indicated by the embossed pattern 6 in the top surface 2. This causes the top surface to fracture at the score line 5, and air enters the jar through the resulting opening. As a result, the vacuum within the jar is released, and the pop-up button 4 is released as indicated by arrow B. The release of the pop-up button 4 is often accompanied by a "pop" or "click” type sound which acts as an audible indication to the consumer that the vacuum has been released. Now the consumer can proceed with twisting off the lid 1 from the top of the jar 10 in the normal fashion, as indicated by arrow C. As there is no longer a vacuum seal to overcome at the twisting off stage, the force required is significantly reduced.
  • Figure 9 shows a section of the lid in cross-section at the point of the user-actuable button.
  • a higher lever surface 20 is provided at a first level A. This higher level surface acts as an indicator for the user, showing where to apply finger pressure.
  • the score line 5 is provided in a lower level surface 21 that is adjacent to the higher level surface 20 at a second level B that is lower than level A.
  • An intermediate level surface 22 is provided at a third level C that is between levels A and B.
  • the intermediate level surface 22 is adjacent to the lower level surface 21 , on the other side from the higher level surface 20.
  • the user applies pressure to the higher level surface 20 causing the lid to fracture along the score line 5.
  • the position of the score line within the lower level 21 , between the higher and intermediate level surfaces 20 and 22, prevents the user from coming into contact with the sharp edges of the fractured score line.
  • the resulting opening does not need to be large as it only requires that air is able to enter the jar to equalise the pressure difference, and so the part of the top surface that is displaced by the force applied by the consumer does not need to be displaced by very much.
  • the maximum displacement will be less than 1 mm, and once the force is removed the resilience of the material will return that part of the top surface substantially to its previous position. Thus the consumer will not see a hole in the closure after opening.
  • FIG. 4 An alternative embodiment is shown in Figure 4.
  • a raised button 12 is provided adjacent to the score line 5, and the shape of the button compliments the shape of the score line, i.e. the score line extends partially around the button.
  • the raised button may be formed from extra material added to the top surface.
  • the embodiment shown is formed by shaping the steel top surface to incorporate the raised button at the desired location.
  • Figure 5 shows a cross section of the lid of Figure 4 along the dotted line D.
  • the score line can, in a further alternative, reduce the thickness of the lid down to 0mm, i.e. the score line breaks through the lid.
  • Figures 6a and 6b show the top and underneath respectively of such a lid. From the top, the lid looks the same as previous embodiments. There is a generally arcuate score line 5, with a raised button 12 formed in the top surface 2, along with a pop-up button 4. Underneath, however, there is an area of compound 14 underneath the button and score line. This compound 14 seals the lid, maintaining the vacuum and protecting the cut edge provided by the score line 5.
  • Figure 7 shows a cross section through the score line 5 and raised button 12, and includes the compound 14 on the underside of the top surface.
  • This compound can be made from a plastic, foil patch, hot melt or rubber-type material.
  • Figures 8a and 8b show how the seal provided by the compound 14 is peeled away from the top surface when a force F is applied to the top of the raised button, and an opening 15 is created through which air can enter the container to release the vacuum.
  • the preferred method of creating the score line is to machine the material by laser to a depth of less than 50 microns, and preferably to 20 microns. Of course, other methods of creating the score line can be used.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closures For Containers (AREA)

Abstract

La présente invention concerne un couvercle amovible (1) destiné à être utilisé avec un récipient de stockage d'aliments (10), le couvercle comportant un bouton de libération sous vide apte à un actionnement par l'utilisateur (12) et comportant à un premier niveau A, une surface surélevée, (20) pour un contact avec un doigt de l'utilisateur, à un second niveau B, inférieur au premier niveau A, une ligne de repère courbe (5) adjacente à ladite surface surélevée (20), et à un troisième niveau C, intermédiaire entre lesdits premier et second niveaux, A et B respectivement, une surface (22) adjacente à ladite ligne de repère courbe (5) sur l'autre côté de ladite surface surélevée (20).
PCT/GB2012/051293 2011-06-14 2012-06-08 Couvercle amovible WO2012172312A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
PL12729696T PL2720960T3 (pl) 2011-06-14 2012-06-08 Usuwalne wieko
US14/125,821 US20140103044A1 (en) 2011-06-14 2012-06-08 A removable lid
CA2838248A CA2838248A1 (fr) 2011-06-14 2012-06-08 Couvercle amovible
EP12729696.0A EP2720960B1 (fr) 2011-06-14 2012-06-08 Couvercle amovible

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP11169893.2 2011-06-14
EP11169893A EP2535290A1 (fr) 2011-06-14 2011-06-14 Couvercle amovible avec bouton de réduction de dépression

Publications (1)

Publication Number Publication Date
WO2012172312A1 true WO2012172312A1 (fr) 2012-12-20

Family

ID=44773199

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB2012/051293 WO2012172312A1 (fr) 2011-06-14 2012-06-08 Couvercle amovible

Country Status (5)

Country Link
US (1) US20140103044A1 (fr)
EP (2) EP2535290A1 (fr)
CA (1) CA2838248A1 (fr)
PL (1) PL2720960T3 (fr)
WO (1) WO2012172312A1 (fr)

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USD715144S1 (en) 2012-11-13 2014-10-14 Ball Corporation Vented container end closure
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US9701447B2 (en) * 2015-06-26 2017-07-11 Container Closure Technologies Llc Reclosable lid for a vacuum food container and having a vacuum release button
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US10954031B2 (en) * 2018-02-22 2021-03-23 Stolle Machinery Company, Llc Push button closure
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USD845765S1 (en) * 2018-02-22 2019-04-16 Stolle Machinery Company, Llc Push button closure
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USD839739S1 (en) * 2018-02-22 2019-02-05 Stolle Machinery Company, Llc Push button closure
USD869241S1 (en) 2018-08-01 2019-12-10 Yeti Coolers, Llc Bowl
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US10729261B2 (en) 2018-09-28 2020-08-04 Yeti Coolers, Llc Bowl and method of forming a bowl
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EP2535290A1 (fr) 2012-12-19
US20140103044A1 (en) 2014-04-17
CA2838248A1 (fr) 2012-12-20
EP2720960A1 (fr) 2014-04-23
EP2720960B1 (fr) 2015-09-09
PL2720960T3 (pl) 2016-02-29

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