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Extract from the Register of European Patents

EP About this file: EP4270350

EP4270350 - OPTICAL FILTER, AND TEST ASSEMBLY AND METHOD FOR SMOKE DETECTOR [Right-click to bookmark this link]
StatusRequest for examination was made
Status updated on  03.05.2024
Database last updated on 30.10.2024
FormerThe application has been published
Status updated on  29.09.2023
Most recent event   Tooltip03.05.2024The date on which the examining division becomes responsible, has been established 
03.05.2024Request for examination filedpublished on 05.06.2024  [2024/23]
03.05.2024Change - designated statespublished on 05.06.2024  [2024/23]
Applicant(s)For all designated states
Gulf Security Technology Company Limited
No. 80 Changjiang East Road
Qinhuangdao Hebei 066004 / CN
[2023/44]
Inventor(s)01 / YANG, Maoqing
Qinhuangdao, 066004 / CN
02 / ZHANG, Jialin
Qinhuangdao, 066004 / CN
03 / WANG, Dachuan
Qinhuangdao, 066004 / CN
 [2023/44]
Representative(s)Dehns
10 Old Bailey
London EC4M 7NG / GB
[N/P]
Former [2023/44]Dehns
St. Bride's House
10 Salisbury Square
London EC4Y 8JD / GB
Application number, filing date23170472.727.04.2023
[2023/44]
Priority number, dateCN20221045851528.04.2022         Original published format: CN202210458515
[2023/44]
Filing languageEN
Procedural languageEN
PublicationType: A1 Application with search report 
No.:EP4270350
Date:01.11.2023
Language:EN
[2023/44]
Search report(s)(Supplementary) European search report - dispatched on:EP02.10.2023
ClassificationIPC:G08B29/14, G08B17/103, G02B5/20
[2023/44]
CPC:
G08B29/145 (EP,US); G02B5/0231 (CN); G02B5/20 (CN);
G02B5/208 (EP,US); G08B17/103 (EP,US); G08B29/00 (CN)
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,   ME,   MK,   MT,   NL,   NO,   PL,   PT,   RO,   RS,   SE,   SI,   SK,   SM,   TR [2024/23]
Former [2023/44]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,  ME,  MK,  MT,  NL,  NO,  PL,  PT,  RO,  RS,  SE,  SI,  SK,  SM,  TR 
Extension statesBANot yet paid
Validation statesKHNot yet paid
MANot yet paid
MDNot yet paid
TNNot yet paid
TitleGerman:OPTISCHER FILTER UND TESTANORDNUNG UND VERFAHREN FÜR RAUCHDETEKTOR[2023/44]
English:OPTICAL FILTER, AND TEST ASSEMBLY AND METHOD FOR SMOKE DETECTOR[2023/44]
French:FILTRE OPTIQUE, ET ENSEMBLE ET PROCÉDÉ DE TEST POUR DÉTECTEUR DE FUMÉE[2023/44]
Examination procedure30.04.2024Amendment by applicant (claims and/or description)
30.04.2024Examination requested  [2024/23]
30.04.2024Date on which the examining division has become responsible
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Documents cited:Search[Y]US2003127585  (LANG SCOTT [US], et al) [Y] 1-10 * abstract * * paragraph [0009] * * paragraph [0028] - paragraph [0039] *;
 [Y]JP2013171177  (NIPPON SIGNAL CO LTD) [Y] 1-10 * figures 6,11 * * paragraph [0001] - paragraph [0002] * * paragraph [0025] - paragraph [0027] * * paragraph [0031] ** paragraph [0039] - paragraph [0040] *
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.