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Extract from the Register of European Patents

EP About this file: EP4110985

EP4110985 - SULFURIC ACID COMPOSITION AND USES THEREOF [Right-click to bookmark this link]
StatusRequest for examination was made
Status updated on  02.12.2022
Database last updated on 07.10.2024
FormerThe international publication has been made
Status updated on  03.09.2021
Most recent event   Tooltip14.08.2024The date on which the examining division becomes responsible, has been established 
14.08.2024Amendment by applicant 
Applicant(s)For all designated states
Sixring Inc.
1500, 140 - 10 Avenue SE
Calgary, AB T2G 0R1 / CA
[2023/01]
Inventor(s)01 / PURDY, Clay
20 Chinook Place SW
Medicine Hat, AB T1A 8S1 / CA
02 / WEISSENBERGER, Markus
19 Copperstone Blvd SE
Calgary, AB T2Z 0G7 / CA
03 / WYNNYK, Kyle, G.
10 Hamlet Road SW
Calgary, AB T2V 3C8 Canada / CA
04 / DAWSON, Karl, W.
106 Hawklance Pl NW
Calgary, AB T3G 3R8 / CA
 [2023/01]
Representative(s)Latscha Schöllhorn Partner AG
Grellingerstrasse 60
4052 Basel / CH
[2023/01]
Application number, filing date21759771.526.02.2021
[2023/01]
WO2021CA00016
Priority number, dateCA2020307419928.02.2020         Original published format: CA 3074199
[2023/01]
Filing languageEN
Procedural languageEN
PublicationType: A1 Application with search report
No.:WO2021168536
Date:02.09.2021
Language:EN
[2021/35]
Type: A1 Application with search report 
No.:EP4110985
Date:04.01.2023
Language:EN
The application published by WIPO in one of the EPO official languages on 02.09.2021 takes the place of the publication of the European patent application.
[2023/01]
Search report(s)International search report - published on:CA02.09.2021
(Supplementary) European search report - dispatched on:EP02.02.2024
ClassificationIPC:D21C3/06, C01B17/69, C09K3/00, D21C3/22
[2024/10]
CPC:
D21C1/04 (EP,GB,IL,KR); C01B17/69 (CZ,IL,KR,US); D21C3/06 (EP,CZ,GB,IL,KR);
D21C3/04 (IL,US); C09K3/00 (CZ); D21B1/021 (EP,GB,IL,KR,US);
D21C3/22 (EP); Y02W30/64 (GB,IL,KR) (-)
Former IPC [2023/01]D21C3/06, C01B17/69, C09K3/00
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 [2023/01]
TitleGerman:SCHWEFELSÄUREZUSAMMENSETZUNGEN UND VERWENDUNGEN DAVON[2023/01]
English:SULFURIC ACID COMPOSITION AND USES THEREOF[2023/01]
French:COMPOSITION D'ACIDE SULFURIQUE ET SES UTILISATIONS[2023/01]
Entry into regional phase06.09.2022National basic fee paid 
06.09.2022Search fee paid 
06.09.2022Designation fee(s) paid 
06.09.2022Examination fee paid 
Examination procedure06.09.2022Examination requested  [2023/01]
14.08.2024Amendment by applicant (claims and/or description)
14.08.2024Date on which the examining division has become responsible
Fees paidRenewal fee
04.01.2023Renewal fee patent year 03
10.02.2024Renewal fee patent year 04
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.
Documents cited:Search[A]GB2175621  (LION CORP) [A] 1-15 * the whole document *;
 [A]EP3045476  (MITSUBISHI GAS CHEMICAL CO [JP]) [A] 1-15* the whole document *;
 [XI]US2016264420  (DINDI HASAN [US]) [X] 1 * paragraphs [0044] , [0045]; claims 1-20 * [I] 2-15;
 [A]EP3396063  (ETH ZUERICH [CH]) [A] 1-15 * the whole document *
International search[A]US4626319  (KRUEGER HORST [DE], et al) [A] 0* (*column 5*) *;
 [X]CA2134270  (MARSULEX INC [CA]) [X] 1, 3-5 and 9 * (* pages 3-5*) *;
 [X]CN103572306  (BYD CO LTD) [X] 1-5 and 9 * (* Machine translation abstract*) *;
 [X]CN103820796  (DONGGUAN KAIMENG SURFACE TREAT TECHNOLOGY DEV LTD COMPANY) [X] 1-5 and 9 * (* Machine Translation abstract*) *;
 [X]CA2923100  (DU PONT [US]) [X] 1, 3-5 and 9 * (*page 1 and page 4*) *;
 [X]CN109877097  (WENGFU DAZHOU CHEM CO LTD) [X] 3-5 and 9 * (* machine translation claim 5*) *
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.