(19)
(11) EP 3 974 664 B8

(12) CORRECTED EUROPEAN PATENT SPECIFICATION
Note: Bibliography reflects the latest situation

(15) Correction information:
Corrected version no 1 (W1 B1)

(48) Corrigendum issued on:
24.01.2024 Bulletin 2024/04

(45) Mention of the grant of the patent:
29.11.2023 Bulletin 2023/48

(21) Application number: 20197713.9

(22) Date of filing: 23.09.2020
(51) International Patent Classification (IPC): 
F16B 25/00(2006.01)
(52) Cooperative Patent Classification (CPC):
F16B 25/0015; F16B 25/0052

(54)

LOW-WEAR SCREWSTRUCTURE

VERSCHLEISSARME SCHRAUBSTRUKTUR

STRUCTURE DE VIS À FAIBLE USURE

(84) Designated Contracting States:
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

(43) Date of publication of application:
30.03.2022 Bulletin 2022/13

(73) Proprietor: Bi-Mirth Corp.
Kaohsiung City (TW)

(72) Inventor:
  • SHIH, Yi-Chieh
    Kaohsiung City (TW)

(74) Representative: 2K Patentanwälte Blasberg Kewitz & Reichel 
Partnerschaft mbB Schumannstrasse 27
60325 Frankfurt am Main
60325 Frankfurt am Main (DE)


(56) References cited: : 
EP-A1- 0 939 235
US-A- 2 263 137
 DE-A1-102017 103 526
US-A1- 2015 010 374
   
  • Anonymous: "LEITFADEN ZUR AUSSENGEWINDEFERTIGUNG Technologie und Rahmenbedingungen", WAGNER TOOLINGSYSTEMS BAUBLIES GMBH, 1 January 2020 (2020-01-01), pages 1-32, XP093027607, Retrieved from the Internet: URL:www.baublies-group.com [retrieved on 2023-02-28]
  • Walzl Alexander: "Additive Manufacturing zur Herstellung von Umformwerkzeugen", Master Thesis, 1 March 2015 (2015-03-01), pages 1-67, XP093027596,
  • Kirichek A. V. ET AL: "Werkstofffluss beim Gewindewalzen", Umformtechnik-Whitepaper, 1 January 2014 (2014-01-01), pages 1-8, XP093027553,
   
Note: Within nine months from the publication of the mention of the grant of the European patent, any person may give notice to the European Patent Office of opposition to the European patent granted. Notice of opposition shall be filed in a written reasoned statement. It shall not be deemed to have been filed until the opposition fee has been paid. (Art. 99(1) European Patent Convention).