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International application No. Applicant's or agent's file reference
PCT/ES2020/070539 PCT3896.5
International filing date (day/month/year) (Earliest) Priority Date (day/month/year)
09 September 2020 02 October 2019
FOR FURTHER ACTION: See Form PCT/ISA/220 as well as, where applicable, item 5 below.
This international search report has been prepared by this International Searching Authority and is transmitted to the applicant according to Article 18. A copy is being transmitted to the International Bureau.
It is also accompanied by a copy of each prior art document cited in this report.
1. Basis of the report
a. With regard to the language, the international search was carried out on the basis of:
the international application in the language in which it was filed.
a translation of the international application into English which is the language of a translation furnished for the purposes of international search (Rules 12.3(a) and 23.1(b)).
This international search report has been established taking into account the rectification of an obvious mistake authorized by or notified to this Authority under Rule 91 (Rule 43.6bis(a)).
With regard to any nucleotide and/or amino acid sequence disclosed in the international application, the international search was carried out on the basis of a sequence listing:
2. Certain claims were found unsearchable
3. Unity of invention is lacking
4. Title of the invention
The text is approved as submitted by the applicant.
The text has been established by this Authority to read as follows:
5. Abstract
The text is approved as submitted by the applicant.
The text has been established, according to Rule 38.2, by this Authority as it appears in Box No. IV. The applicant may, within one month from the date of mailing of this international search report, submit comments to this Authority.

The present invention describes a container for liquids that makes it possible to reduce the gushing effect, facilitate recycling, and reduce material, without the need for adding complex manufacturing processes that increase technical complexity and associated costs. More particularly, said container is made up of a single multilayer sheet (4) which comprises an outer cardboard multilayer (17) partially attached to an inner flexible aseptic multilayer (18) via a minimal attachment zone (U) between multilayers (17,18), and wherein said container further comprises a ventilation through-hole (9) passing only through the outer cardboard multilayer (17), located in an upper portion (1) opposite the pouring portion (2 ), so as to balance vacuum pressures created internally when the liquid is poured, as a result of a compression of the inner flexible aseptic multilayer (18) during pouring, thereby avoiding gushing.

6. Drawings
The figure of the drawings to be published with the abstract is Figure No.     1    
as suggested by the applicant.
as selected by this Authority, because the applicant failed to suggest a figure.
as selected by this Authority, because this figure better characterizes the invention.
none of the figures is to be published with the abstract.


     B65D 3/08 (2006.01)i; B65D 5/60 (2006.01)i; B65D 5/06 (2006.01)n
According to International Patent Classification (IPC) or to both national classification and IPC


Minimum documentation searched (classification system followed by classification symbols):
Documentation searched other than minimum documentation to the extent that such documents are included in the fields searched:
Electronic data base consulted during the international search (name of data base and, where practicable, search terms used):


Category* Citation of document, with indication, where appropriate, of the relevant passages Relevant to claim No.
CH 366792 A (MENSING HANSJUERGEN [DE]; KOHRIG GERHARD [DE]) 15 January 1963 (1963-01-15)
page 1, line 1 - page 2, line 100
figures 1-3
US 4915236 A (KAMIN KLAUS O K [DE] ET AL) 10 April 1990 (1990-04-10)
column 1, line 35 - column 4, line 14
figures 1-6
US 3266713 A (HALVARD MARTENSSON KJELL ET AL) 16 August 1966 (1966-08-16)
column 1, line 11 - column 4, line 28
figures 1, 2
WO 9614986 A1 (GRAPHIC PACKAGING CORP [US]) 23 May 1996 (1996-05-23)
pages 1-17
figures 1-18
WO 2008026106 A2 (KIMBERLY CLARK CO [US]; SIQUEIRA JOSE [US] ET AL.) 06 March 2008 (2008-03-06)
page 19, line 31 - page 20, line 21
US 5156295 A (GORDON ROBERT L [US] ET AL) 20 October 1992 (1992-10-20)
column 1, line 33 - column 5, line 28
figures 1-12
Special categories of cited documents:
document defining the general state of the art which is not considered to be of particular relevance
document cited by the applicant in the international application
earlier application or patent but published on or after the international filing date
document which may throw doubts on priority claim(s) or which is cited to establish the publication date of another citation or other special reason (as specified)
document referring to an oral disclosure, use, exhibition or other means
document published prior to the international filing date but later than the priority date claimed
later document published after the international filing date or priority date and not in conflict with the application but cited to understand the principle or theory underlying the invention
document of particular relevance; the claimed invention cannot be considered novel or cannot be considered to involve an inventive step when the document is taken alone
document of particular relevance; the claimed invention cannot be considered to involve an inventive step when the document is combined with one or more other such documents, such combination being obvious to a person skilled in the art
document member of the same patent family


Patent document cited in search report Publication date
Patent family member(s) Publication date
CH 366792 A
15 January 1963
US 4915236 A
10 April 1990
AU 1971488 A
DK 414088 A
EP 0300211 A1
US 4915236 A
27 January 1989
24 January 1989
25 January 1989
10 April 1990
US 3266713 A
16 August 1966
BE 655496 A
CH 437124 A
DE 1296084 B
DK 106178 C
ES 305757 A1
FI 43407 B
GB 1014210 A
NL 6412384 A
US 3266713 A
01 March 1965
31 May 1967
22 May 1969
27 December 1966
01 April 1965
30 November 1970
22 December 1965
10 May 1965
16 August 1966
WO 9614986 A1
23 May 1996
AU 703270 B2
CA 2205401 A1
DE 69532612 T2
EP 0792212 A1
ES 2217286 T3
WO 9614986 A1
25 March 1999
23 May 1996
09 December 2004
03 September 1997
01 November 2004
23 May 1996
WO 2008026106 A2
06 March 2008
AR 062608 A1
AU 2007290942 A1
BR PI0715910 A2
CN 101511579 A
CN 103434239 A
EP 2064052 A2
KR 20090045293 A
RU 2009111401 A
US 2008095978 A1
US 2008132866 A1
US 2013126070 A1
WO 2008026106 A2
19 November 2008
06 March 2008
26 March 2013
19 August 2009
11 December 2013
03 June 2009
07 May 2009
10 October 2010
24 April 2008
05 June 2008
23 May 2013
06 March 2008
US 5156295 A
20 October 1992
Name and mailing address of the ISA/:
European Patent Office
P.B. 5818, Patentlaan 2, 2280 HV Rijswijk,
Telephone No. (+31-70)340-2040
Facsimile No. (+31-70)340-3016
Date of the actual completion of the international search:
30 November 2020
Date of mailing of the international search report:
14 December 2020
Authorized officer:
Duc, Emmanuel
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