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Extract from the Register of European Patents

EP About this file: EP3884487

EP3884487 - MAMR RECORDING HEAD WITH HIGH DAMPING TRAILING SHIELD SEED LAYER [Right-click to bookmark this link]
StatusRequest for examination was made
Status updated on  27.08.2021
Database last updated on 14.09.2024
FormerThe international publication has been made
Status updated on  10.07.2021
Formerunknown
Status updated on  09.06.2021
Most recent event   Tooltip03.01.2024New entry: Renewal fee paid 
Applicant(s)For all designated states
Western Digital Technologies, Inc.
5601 Great Oaks Parkway
San Jose, CA 95119 / US
[2021/39]
Inventor(s)01 / GONCHAROV, Alexander
c/o Western Digital Technologies Inc.
5601 Great Oaks Parkway
San Jose
California 95119 / US
02 / ASIF BASHIR, Muhammad
c/o Western Digital Technologies Inc.
5601 Great Oaks Parkway
San Jose
California 95119 / US
03 / VANDERHEIJDEN, Petrus Antonius
c/o Western Digital Technologies Inc.
5601 Great Oaks Parkway
San Jose
California 95119 / US
 [2021/39]
Representative(s)Dehns
St. Bride's House
10 Salisbury Square
London EC4Y 8JD / GB
[2021/39]
Application number, filing date20894912.318.03.2020
[2021/39]
WO2020US23425
Priority number, dateUS20191673071330.12.2019         Original published format: US201916730713
[2021/39]
Filing languageEN
Procedural languageEN
PublicationType: A1 Application with search report
No.:WO2021137881
Date:08.07.2021
Language:EN
[2021/27]
Type: A1 Application with search report 
No.:EP3884487
Date:29.09.2021
Language:EN
The application published by WIPO in one of the EPO official languages on 08.07.2021 takes the place of the publication of the European patent application.
[2021/39]
Search report(s)International search report - published on:KR08.07.2021
(Supplementary) European search report - dispatched on:EP24.06.2022
ClassificationIPC:G11B5/31, G11B5/00, G11B5/127
[2022/30]
CPC:
G11B5/315 (EP,US); G11B5/112 (CN); G11B5/11 (US);
G11B5/1278 (EP,US); G11B5/3116 (CN); G11B5/3133 (US);
G11B5/314 (US); G11B5/3146 (US); G11B5/3153 (EP,US);
G11B5/35 (US); G11B5/65 (CN); G11B5/70605 (CN);
G11B2005/0024 (EP,US) (-)
Former IPC [2021/39]G11B5/31, G11B5/00
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 [2021/39]
TitleGerman:MAMR-AUFZEICHNUNGSKOPF MIT STARTSCHICHT MIT HOHER DÄMPFUNG DER HINTEREN ABSCHIRMUNG[2021/39]
English:MAMR RECORDING HEAD WITH HIGH DAMPING TRAILING SHIELD SEED LAYER[2021/39]
French:TÊTE D'ENREGISTREMENT MAMR À COUCHE GERME DE PROTECTION ARRIÈRE À AMORTISSEMENT ÉLEVÉ[2021/39]
Entry into regional phase08.06.2021National basic fee paid 
08.06.2021Search fee paid 
08.06.2021Designation fee(s) paid 
08.06.2021Examination fee paid 
Examination procedure08.06.2021Examination requested  [2021/39]
16.12.2022Amendment by applicant (claims and/or description)
Fees paidRenewal fee
22.02.2022Renewal fee patent year 03
14.02.2023Renewal fee patent year 04
03.01.2024Renewal fee patent year 05
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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]US2009257154  (CAREY MATTHEW J [US], et al) [A] 1-11* the whole document *;
 [A]US9355654  (MALLARY MICHAEL L [US]) [A] 1-11 * column 2, lines 1-49; figures 2A, 2B * * column 3, line 61 - column 5, line 27 *;
 [A]US2018144768  (LIU YUE [US], et al) [A] 1-11 * paragraphs [0032] - [0041] *;
 [A]US2019251992  (HO MICHAEL KUOK SAN [US], et al) [A] 1-11 * paragraphs [0028] - [0030] *
International search[Y]US2009257154  (CAREY MATTHEW J [US], et al) [Y] 1-20;
 [A]US2011216447  (LI MIN [US], et al) [A] 1-20;
 [A]US2013222949  (BRAGANCA PATRICK MESQUITA [US], et al) [A] 1-20;
 [A]US2018323371  (LIU HUANLONG [US], et al)[A] 1-20;
 [Y]US2019147907  (LI ZHANJIE [US], et al) [Y] 1-20
by applicantUS2019251992
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.