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Extract from the Register of European Patents

EP About this file: EP3889988

EP3889988 - PROTECTION DEVICE WITH U-SHAPED FUSE ELEMENT [Right-click to bookmark this link]
StatusNo opposition filed within time limit
Status updated on  14.02.2025
Database last updated on 19.03.2026
FormerThe patent has been granted
Status updated on  08.03.2024
FormerGrant of patent is intended
Status updated on  15.11.2023
FormerRequest for examination was made
Status updated on  08.04.2022
FormerThe application has been published
Status updated on  03.09.2021
Most recent event   Tooltip17.10.2025Lapse of the patent in a contracting state
New state(s): MC		published on 19.11.2025  [2025/47]
Applicant(s)For all designated states
Littelfuse, Inc.
8755 W. Higgins Road Suite 500
Chicago, IL 60631 / US
[2024/15]
Former [2021/40]For all designated states
Littelfuse, Inc.
8755 W. Higgins Road Suite 500
Chicago, IL 60631 / US
Inventor(s)01 / Chennakesavelu, Ganesh Nagaraj
Littelfuse, Inc.
8755 West Higgins Road, Suite 500
Chicago, IL 60631 / US
02 / Hetzmannseder, Engelbert
Littelfuse, Inc.
8755 West Higgins Road, Suite 500
Chicago, IL 60631 / US
03 / Lasini, Derek
Littelfuse, Inc.
8755 West Higgins Road, Suite 500
Chicago, IL 60631 / US
 [2021/40]
Representative(s)Arnold & Siedsma
Bezuidenhoutseweg 57
2594 AC The Hague / NL
[2021/40]
Application number, filing date21166221.831.03.2021
[2021/40]
Priority number, dateUS20201683852102.04.2020         Original published format: US202016838521
[2021/40]
Filing languageEN
Procedural languageEN
PublicationType: A1 Application with search report 
No.:EP3889988
Date:06.10.2021
Language:EN
[2021/40]
Type: B1 Patent specification 
No.:EP3889988
Date:10.04.2024
Language:EN
[2024/15]
Search report(s)(Supplementary) European search report - dispatched on:EP25.08.2021
ClassificationIPC:H01H85/08, H01H85/175, H01H85/38, H01H9/36, H01H85/042
[2021/40]
CPC:
H01H85/08 (EP,CN,US); H01H85/042 (EP); H01H85/055 (EP);
H01H85/165 (CN); H01H85/175 (EP,US); H01H85/18 (EP,CN,US);
H01H85/185 (EP); H01H85/38 (EP,CN,US); H01H9/302 (EP);
H01H9/36 (EP); H01H2085/383 (EP); H01H2085/388 (EP,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,   MK,   MT,   NL,   NO,   PL,   PT,   RO,   RS,   SE,   SI,   SK,   SM,   TR [2022/19]
Former [2021/40]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:SCHUTZVORRICHTUNG MIT U-FÖRMIGEM SICHERUNGSELEMENT[2021/40]
English:PROTECTION DEVICE WITH U-SHAPED FUSE ELEMENT[2021/40]
French:DISPOSITIF DE PROTECTION DOTÉ D'UN ÉLÉMENT DE FUSIBLE EN U[2021/40]
Examination procedure05.04.2022Amendment by applicant (claims and/or description)
05.04.2022Examination requested  [2022/19]
05.04.2022Date on which the examining division has become responsible
16.11.2023Communication of intention to grant the patent
06.03.2024Fee for grant paid
06.03.2024Fee for publishing/printing paid
06.03.2024Receipt of the translation of the claim(s)
Opposition(s)13.01.2025No opposition filed within time limit [2025/12]
Fees paidRenewal fee
15.02.2023Renewal fee patent year 03
03.01.2024Renewal fee patent year 04
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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.
Lapses during opposition  TooltipAT10.04.2024
BG10.04.2024
CZ10.04.2024
DK10.04.2024
EE10.04.2024
ES10.04.2024
FI10.04.2024
HR10.04.2024
LV10.04.2024
MC10.04.2024
NL10.04.2024
PL10.04.2024
RO10.04.2024
SE10.04.2024
SI10.04.2024
SK10.04.2024
SM10.04.2024
NO10.07.2024
RS10.07.2024
GR11.07.2024
IS10.08.2024
PT12.08.2024
[2025/47]
Former [2025/42]AT10.04.2024
BG10.04.2024
CZ10.04.2024
DK10.04.2024
EE10.04.2024
ES10.04.2024
FI10.04.2024
HR10.04.2024
LV10.04.2024
NL10.04.2024
PL10.04.2024
RO10.04.2024
SE10.04.2024
SI10.04.2024
SK10.04.2024
SM10.04.2024
NO10.07.2024
RS10.07.2024
GR11.07.2024
IS10.08.2024
PT12.08.2024
Former [2025/22]AT10.04.2024
BG10.04.2024
CZ10.04.2024
DK10.04.2024
EE10.04.2024
ES10.04.2024
FI10.04.2024
HR10.04.2024
LV10.04.2024
NL10.04.2024
PL10.04.2024
RO10.04.2024
SI10.04.2024
SK10.04.2024
SM10.04.2024
NO10.07.2024
RS10.07.2024
GR11.07.2024
IS10.08.2024
PT12.08.2024
Former [2025/10]AT10.04.2024
BG10.04.2024
CZ10.04.2024
DK10.04.2024
EE10.04.2024
ES10.04.2024
FI10.04.2024
HR10.04.2024
LV10.04.2024
NL10.04.2024
PL10.04.2024
RO10.04.2024
SK10.04.2024
SM10.04.2024
NO10.07.2024
RS10.07.2024
GR11.07.2024
IS10.08.2024
PT12.08.2024
Former [2025/09]AT10.04.2024
BG10.04.2024
DK10.04.2024
EE10.04.2024
ES10.04.2024
FI10.04.2024
HR10.04.2024
LV10.04.2024
NL10.04.2024
PL10.04.2024
NO10.07.2024
RS10.07.2024
GR11.07.2024
IS10.08.2024
PT12.08.2024
Former [2025/08]AT10.04.2024
BG10.04.2024
DK10.04.2024
ES10.04.2024
FI10.04.2024
HR10.04.2024
LV10.04.2024
NL10.04.2024
PL10.04.2024
NO10.07.2024
RS10.07.2024
GR11.07.2024
IS10.08.2024
PT12.08.2024
Former [2024/49]AT10.04.2024
BG10.04.2024
ES10.04.2024
FI10.04.2024
HR10.04.2024
LV10.04.2024
NL10.04.2024
PL10.04.2024
NO10.07.2024
RS10.07.2024
GR11.07.2024
IS10.08.2024
PT12.08.2024
Former [2024/48]AT10.04.2024
BG10.04.2024
ES10.04.2024
FI10.04.2024
HR10.04.2024
NL10.04.2024
NO10.07.2024
GR11.07.2024
IS10.08.2024
PT12.08.2024
Former [2024/47]BG10.04.2024
FI10.04.2024
HR10.04.2024
NL10.04.2024
NO10.07.2024
GR11.07.2024
IS10.08.2024
PT12.08.2024
Former [2024/44]NL10.04.2024
Documents cited:Search[XY] US4071837  (RANZANIGO PIERLUIGI et al.)
 [Y] US2007313  (SHERWOOD ROBERT G et al.)
 [XY] US5793275  (IVERSEN ARTHUR H et al.) [X] 1-3,6-9,11-13 * the whole document *[Y] 4,5,15
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.