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Extract from the Register of European Patents

EP About this file: EP3980378

EP3980378 - PROCESS AND SYSTEM FOR PRODUCING SODIUM HYDROSULFITE CRYSTALS [Right-click to bookmark this link]
StatusExamination is in progress
Status updated on  09.02.2024
Database last updated on 09.09.2024
FormerRequest for examination was made
Status updated on  11.03.2022
FormerThe international publication has been made
Status updated on  18.12.2020
Most recent event   Tooltip01.06.2024New entry: Reply to examination report 
01.06.2024New entry: Renewal fee paid 
Applicant(s)For all designated states
Silox Canada Inc.
2324 Eistein
Quebec, Québec G1P 3S2 / CA
[2022/36]
Former [2022/15]For all designated states
Hydro Technologies (Canada) Inc.
2324 Eistein
Quebec, Québec G1P 3S2 / CA
Inventor(s)01 / DOUVILLE, Patrice
1165 rue Clair-de-Lune
Quebec, Québec G3K 1C9 / CA
 [2022/15]
Representative(s)BCF Global
Centre d'Entreprise et d'Innovation
17-21, rue Saint-Fiacre
75002 Paris / FR
[N/P]
Former [2022/15]BCF Global
Centre d'Entreprise et d'Innovation
56, Bd Niels Bohr
CS 52132
69603 Villeurbanne Cedex / FR
Application number, filing date20821730.704.06.2020
[2022/15]
WO2020CA50769
Priority number, dateUS201962859381P10.06.2019         Original published format: US 201962859381 P
[2022/15]
Filing languageEN
Procedural languageEN
PublicationType: A1 Application with search report
No.:WO2020248045
Date:17.12.2020
Language:EN
[2020/51]
Type: A1 Application with search report 
No.:EP3980378
Date:13.04.2022
Language:EN
The application published by WIPO in one of the EPO official languages on 17.12.2020 takes the place of the publication of the European patent application.
[2022/15]
Search report(s)International search report - published on:CA17.12.2020
(Supplementary) European search report - dispatched on:EP26.06.2023
ClassificationIPC:C01D5/14, C01B17/62
[2023/30]
CPC:
C01D5/16 (EP); C01B17/66 (US); C01B17/62 (EP)
Former IPC [2022/15]C01D5/14, C01B17/62, C30B29/46, C30B7/08
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 [2022/15]
TitleGerman:VERFAHREN UND SYSTEM ZUR HERSTELLUNG VON NATRIUMHYDROSULFITKRISTALLEN[2022/15]
English:PROCESS AND SYSTEM FOR PRODUCING SODIUM HYDROSULFITE CRYSTALS[2022/15]
French:PROCÉDÉ ET SYSTÈME DE PRODUCTION DE CRISTAUX D'HYDROSULFITE DE SODIUM[2022/15]
Entry into regional phase07.01.2022National basic fee paid 
07.01.2022Search fee paid 
07.01.2022Designation fee(s) paid 
07.01.2022Examination fee paid 
Examination procedure15.03.2021Request for preliminary examination filed
International Preliminary Examining Authority: CA
07.01.2022Examination requested  [2022/15]
17.10.2023Amendment by applicant (claims and/or description)
13.02.2024Despatch of a communication from the examining division (Time limit: M04)
30.05.2024Reply to a communication from the examining division
Fees paidRenewal fee
11.05.2022Renewal fee patent year 03
31.05.2023Renewal fee patent year 04
30.05.2024Renewal fee patent year 05
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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.
Documents cited:Search   [ ] - No further relevant documents disclosed
International search[X]US3054658  (CRAWFORD FRANKLIN RICHARD, et al) [X] 1-41 * Abstract, claims col 1, lines 10-55, Examples *;
 [X]CA896842  (VIRGINIA CHEMICALS INC) [X] 1-41 * Abstract, Claims *;
 [X]US4388291  (ARAKAWA SATOSHI [JP]) [X] 1-41 * Abstract, claims, col 1, liens 5-30, col 2, lines 23-40 *;
 [X]US5296210  (OGLESBY DONALD M [US]) [X] 1-41* Abstract *
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.