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Extract from the Register of European Patents

EP About this file: EP3792536

EP3792536 - NEGATIVE PRESSURE PIPELINE OPENING AND CLOSING DEVICE [Right-click to bookmark this link]
StatusNo opposition filed within time limit
Status updated on  09.02.2024
Database last updated on 31.08.2024
FormerThe patent has been granted
Status updated on  03.03.2023
FormerGrant of patent is intended
Status updated on  04.12.2022
FormerRequest for examination was made
Status updated on  24.09.2021
FormerThe application has been published
Status updated on  12.02.2021
Most recent event   Tooltip02.08.2024Lapse of the patent in a contracting state
New state(s): BE		published on 04.09.2024 [2024/36]
Applicant(s)For all designated states
Shanghai Ztec Environmental S&T Co., Ltd.
8-North-C07, 3388 ZhouJiaZui Road
Shanghai 200082 / CN
[2021/11]
Inventor(s)01 / CHEN, Liguo
c/o Shanghai ZTEC Environmental S&T CO., LTD.
8-North-C07, 3388 ZhouJiaZui Road
Shanghai, 200082 / CN
 [2021/11]
Representative(s)Dr. Gassner & Partner mbB
Wetterkreuz 3
91058 Erlangen / DE
[2021/11]
Application number, filing date20195228.009.09.2020
[2021/11]
Priority number, dateCN20191085948311.09.2019         Original published format: CN201910859483
CN20191138323327.12.2019         Original published format: CN201911383233
[2021/11]
Filing languageEN
Procedural languageEN
PublicationType: A2 Application without search report 
No.:EP3792536
Date:17.03.2021
Language:EN
[2021/11]
Type: A3 Search report 
No.:EP3792536
Date:12.05.2021
Language:EN
[2021/19]
Type: B1 Patent specification 
No.:EP3792536
Date:05.04.2023
Language:EN
[2023/14]
Search report(s)(Supplementary) European search report - dispatched on:EP14.04.2021
ClassificationIPC:F16K31/18, F16K31/24, F16K31/22, F16K31/28, G05D9/02
[2021/11]
CPC:
F16K31/22 (EP,US); F16K31/28 (EP,US); F16K1/14 (US);
F16K1/32 (US); F16K27/0245 (US); G05D9/02 (EP);
Y10T137/7404 (US); Y10T137/7436 (US) (-)
Designated contracting statesAL,   AT,   BE,   BG,   CH,   CY,   CZ,   DE,   DK,   EE,   ES,   FI,   FR,   GB,   GR,   HR,   HU,   IE,   IS,   IT,   LI,   LT,   LU,   LV,   MC,   MK,   MT,   NL,   NO,   PL,   PT,   RO,   RS,   SE,   SI,   SK,   SM,   TR [2021/43]
Former [2021/11]AL,  AT,  BE,  BG,  CH,  CY,  CZ,  DE,  DK,  EE,  ES,  FI,  FR,  GB,  GR,  HR,  HU,  IE,  IS,  IT,  LI,  LT,  LU,  LV,  MC,  MK,  MT,  NL,  NO,  PL,  PT,  RO,  RS,  SE,  SI,  SK,  SM,  TR 
TitleGerman:VORRICHTUNG ZUM ÖFFNEN UND SCHLIESSEN VON UNTERDRUCKROHRLEITUNGEN[2021/11]
English:NEGATIVE PRESSURE PIPELINE OPENING AND CLOSING DEVICE[2021/11]
French:DISPOSITIF D'OUVERTURE ET DE FERMETURE D'UN PIPELINE À PRESSION NÉGATIVE[2021/11]
Examination procedure20.09.2021Amendment by applicant (claims and/or description)
20.09.2021Examination requested  [2021/43]
20.09.2021Date on which the examining division has become responsible
05.12.2022Communication of intention to grant the patent
17.02.2023Fee for grant paid
17.02.2023Fee for publishing/printing paid
17.02.2023Receipt of the translation of the claim(s)
Opposition(s)08.01.2024No opposition filed within time limit [2024/11]
Fees paidRenewal fee
27.09.2022Renewal fee patent year 03
Opt-out from the exclusive  Tooltip
competence of the Unified
Patent Court		 See the Register of the Unified Patent Court for opt-out data
Responsibility for the accuracy, completeness or quality of the data displayed under the link provided lies entirely with the Unified Patent Court.
Lapses during opposition  TooltipAL05.04.2023
AT05.04.2023
CZ05.04.2023
DK05.04.2023
EE05.04.2023
ES05.04.2023
FI05.04.2023
HR05.04.2023
IT05.04.2023
LT05.04.2023
LV05.04.2023
MC05.04.2023
NL05.04.2023
PL05.04.2023
RO05.04.2023
RS05.04.2023
SE05.04.2023
SI05.04.2023
SK05.04.2023
SM05.04.2023
NO05.07.2023
GR06.07.2023
IS05.08.2023
PT07.08.2023
IE09.09.2023
LU09.09.2023
BE30.09.2023
CH30.09.2023
[2024/36]
Former [2024/34]AL05.04.2023
AT05.04.2023
CZ05.04.2023
DK05.04.2023
EE05.04.2023
ES05.04.2023
FI05.04.2023
HR05.04.2023
IT05.04.2023
LT05.04.2023
LV05.04.2023
MC05.04.2023
NL05.04.2023
PL05.04.2023
RO05.04.2023
RS05.04.2023
SE05.04.2023
SI05.04.2023
SK05.04.2023
SM05.04.2023
NO05.07.2023
GR06.07.2023
IS05.08.2023
PT07.08.2023
IE09.09.2023
LU09.09.2023
CH30.09.2023
Former [2024/33]AL05.04.2023
AT05.04.2023
CZ05.04.2023
DK05.04.2023
EE05.04.2023
ES05.04.2023
FI05.04.2023
HR05.04.2023
IT05.04.2023
LT05.04.2023
LV05.04.2023
MC05.04.2023
NL05.04.2023
PL05.04.2023
RO05.04.2023
RS05.04.2023
SE05.04.2023
SI05.04.2023
SK05.04.2023
SM05.04.2023
NO05.07.2023
GR06.07.2023
IS05.08.2023
PT07.08.2023
IE09.09.2023
LU09.09.2023
Former [2024/28]AL05.04.2023
AT05.04.2023
CZ05.04.2023
DK05.04.2023
EE05.04.2023
ES05.04.2023
FI05.04.2023
HR05.04.2023
IT05.04.2023
LT05.04.2023
LV05.04.2023
MC05.04.2023
NL05.04.2023
PL05.04.2023
RO05.04.2023
RS05.04.2023
SE05.04.2023
SI05.04.2023
SK05.04.2023
SM05.04.2023
NO05.07.2023
GR06.07.2023
IS05.08.2023
PT07.08.2023
LU09.09.2023
Former [2024/26]AL05.04.2023
AT05.04.2023
CZ05.04.2023
DK05.04.2023
EE05.04.2023
ES05.04.2023
FI05.04.2023
HR05.04.2023
IT05.04.2023
LT05.04.2023
LV05.04.2023
NL05.04.2023
PL05.04.2023
RO05.04.2023
RS05.04.2023
SE05.04.2023
SI05.04.2023
SK05.04.2023
SM05.04.2023
NO05.07.2023
GR06.07.2023
IS05.08.2023
PT07.08.2023
LU09.09.2023
Former [2024/10]AL05.04.2023
AT05.04.2023
CZ05.04.2023
DK05.04.2023
EE05.04.2023
ES05.04.2023
FI05.04.2023
HR05.04.2023
LT05.04.2023
LV05.04.2023
NL05.04.2023
PL05.04.2023
RO05.04.2023
RS05.04.2023
SE05.04.2023
SK05.04.2023
SM05.04.2023
NO05.07.2023
GR06.07.2023
IS05.08.2023
PT07.08.2023
Former [2024/08]AL05.04.2023
AT05.04.2023
ES05.04.2023
FI05.04.2023
HR05.04.2023
LT05.04.2023
LV05.04.2023
NL05.04.2023
PL05.04.2023
RS05.04.2023
SE05.04.2023
SK05.04.2023
SM05.04.2023
NO05.07.2023
GR06.07.2023
IS05.08.2023
PT07.08.2023
Former [2024/03]AL05.04.2023
AT05.04.2023
ES05.04.2023
FI05.04.2023
HR05.04.2023
LT05.04.2023
LV05.04.2023
NL05.04.2023
PL05.04.2023
RS05.04.2023
SE05.04.2023
NO05.07.2023
GR06.07.2023
IS05.08.2023
PT07.08.2023
Former [2024/01]AL05.04.2023
AT05.04.2023
ES05.04.2023
HR05.04.2023
LT05.04.2023
LV05.04.2023
NL05.04.2023
PL05.04.2023
RS05.04.2023
SE05.04.2023
NO05.07.2023
GR06.07.2023
IS05.08.2023
PT07.08.2023
Former [2023/51]AL05.04.2023
AT05.04.2023
ES05.04.2023
HR05.04.2023
NL05.04.2023
PL05.04.2023
RS05.04.2023
SE05.04.2023
NO05.07.2023
GR06.07.2023
IS05.08.2023
PT07.08.2023
Former [2023/50]AL05.04.2023
AT05.04.2023
ES05.04.2023
NL05.04.2023
PL05.04.2023
SE05.04.2023
NO05.07.2023
GR06.07.2023
IS05.08.2023
PT07.08.2023
Former [2023/48]AT05.04.2023
ES05.04.2023
NL05.04.2023
SE05.04.2023
NO05.07.2023
PT07.08.2023
Former [2023/46]ES05.04.2023
NL05.04.2023
PT07.08.2023
Former [2023/43]NL05.04.2023
Documents cited:Search[X]FR2131127  (FILTRO SA) [X] 1-6 * figures 3, 4 *;
 [X]WO9960221  (BOEHM ARTHUR [DE], et al) [X] 1-6 * abstract *;
 [X]CA2451396  (CULLIGAN INT CO [US]) [X] 1-6 * abstract *;
 [A]CA2498974  (PREMIER TECH 2000 LTEE [CA]) [A] 2* figures 1-3 *;
 [X]US2010000917  (ZOOK NEAL [US]) [X] 1-6 * abstract *
by applicantCN203035271U
The EPO accepts no responsibility for the accuracy of data originating from other authorities; in particular, it does not guarantee that it is complete, up to date or fit for specific purposes.