The patent has been granted The patent has been granted, Grant of patent is intended, Examination is in progress, Request for examination was made, The application has been published EP Register Verified

DOUBLE ENDED CUTTING INSERT FOR PARTING

Publication No. EP3421159

•

App No. EP17178058

•

Filed by WALTER AG

•

Filed on 2017-06-27

•

Issued/Published on 2025-12-10

Official EPO Register

Publication No. EP3421159 A1

Application No. EP17178058 Filed: 2017-06-27

Grant Date 2025-12-10 Mention of grant

Active Oppositions 1 Active EPO Oppositions

Patent Abstract / Summary

[0001] The present invention is related to a double ended cutting insert (10) designed for parting and grooving, having the basic shape of an elongated cuboid body comprising a top side (1), a bottom side (2), two oppositely arranged side faces (3) connecting the left and right edges, respectively, of the top and bottom sides, and two oppositely arranged end faces (5) connecting the top (1) and bottom sides (2) as well as the side faces (3), wherein main cutting edges (6) are formed at the transition from each of the end faces(5) to the top side (1) and/or the bottom side (2) wherein a relief surface (7) is formed on the end faces (5) adjacent each cutting edge (6). In order to reduce the risk of such cutting inserts to be laterally moved out of a corresponding recess in the blade of a tool holder the cutting insert is characterized in that each end face of the insert is provided with a groove (8) extending from the relief surface (7) towards the bottom side (2) and adapted to receive a correspondingly shaped projection of an insert holder (20).

IPC Classifications

B23B27/04, B23B29/04

Priority Claims

No priority claims recorded

Designated Contracting States (38 EPC 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

Parties & Representation

Applicants

WALTER AG

Derendinger Strasse 53, 72072 Tübingen

Inventors (1)

ZEEB, Rudi

Kingersheimerstr. 44, 72070 Tübingen

Representatives / Agents

Sandvik

Sandvik Intellectual Property AB, 811 81 Sandviken

Vossius & Partner Patentanwälte Rechtsanwälte mbB

Siebertstrasse 3, 81675 München

Key Procedural Dates

Request-For-Examination 2019-07-02

Mention Of Grant Published 2025-12-10

First-Examination-Report-Despatched 2022-05-12

Legal Status & Event History

Official European Patent Office legal and procedural status changes recorded for this file.

48 Events Recorded

Date	Code	Event Description	Auth
2019-01-02	AX	REQUEST FOR EXTENSION OF THE EUROPEAN PATENT	EP
2019-01-02	AK	DESIGNATED CONTRACTING STATES	EP
2019-08-07	RBV	DESIGNATED CONTRACTING STATES (CORRECTED)	EP
2019-08-07	17P	REQUEST FOR EXAMINATION FILED	EP
2018-11-30	PUAI	PUBLIC REFERENCE MADE UNDER ARTICLE 153(3) EPC TO A PUBLISHED INTERNATIONAL APPLICATION THAT HAS ENTERED THE EUROPEAN PHASE	EP
2019-07-05	STAA	INFORMATION ON THE STATUS OF AN EP PATENT APPLICATION OR GRANTED EP PATENT	EP
2018-11-30	STAA	INFORMATION ON THE STATUS OF AN EP PATENT APPLICATION OR GRANTED EP PATENT	EP
2022-05-13	STAA	INFORMATION ON THE STATUS OF AN EP PATENT APPLICATION OR GRANTED EP PATENT	EP
2022-06-15	17Q	FIRST EXAMINATION REPORT DESPATCHED	EP
2025-07-28	GRAP	DESPATCH OF COMMUNICATION OF INTENTION TO GRANT A PATENT	EP
2025-07-28	STAA	INFORMATION ON THE STATUS OF AN EP PATENT APPLICATION OR GRANTED EP PATENT	EP
2025-08-27	INTG	INTENTION TO GRANT ANNOUNCED	EP
2025-11-07	GRAA	(EXPECTED) GRANT	EP
2025-11-04	GRAS	GRANT FEE PAID	EP
2025-11-07	STAA	INFORMATION ON THE STATUS OF AN EP PATENT APPLICATION OR GRANTED EP PATENT	EP
2025-11-26	P01	OPT-OUT OF THE COMPETENCE OF THE UNIFIED PATENT COURT (UPC) REGISTERED	EP
2025-12-10	AK	DESIGNATED CONTRACTING STATES	EP
2025-12-10	REG	REFERENCE TO A NATIONAL CODE	EP
2025-12-24	REG	REFERENCE TO A NATIONAL CODE	EP
2025-12-31	REG	REFERENCE TO A NATIONAL CODE	EP
2026-04-10	REG	REFERENCE TO A NATIONAL CODE	EP
2026-04-10	PG25	LAPSED IN A CONTRACTING STATE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO]	EP
2026-04-13	PG25	LAPSED IN A CONTRACTING STATE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO]	EP
2026-04-14	PG25	LAPSED IN A CONTRACTING STATE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO]	EP
2026-04-17	PG25	LAPSED IN A CONTRACTING STATE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO]	EP
2026-04-15	REG	REFERENCE TO A NATIONAL CODE	EP
2026-04-28	PG25	LAPSED IN A CONTRACTING STATE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO]	EP
2026-04-30	PG25	LAPSED IN A CONTRACTING STATE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO]	EP
2026-05-15	REG	REFERENCE TO A NATIONAL CODE	EP
2026-05-18	PG25	LAPSED IN A CONTRACTING STATE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO]	EP
2026-06-29	PG25	LAPSED IN A CONTRACTING STATE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO]	EP
2026-07-03	PG25	LAPSED IN A CONTRACTING STATE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO]	EP
2026-07-09	PGFP	ANNUAL FEE PAID TO NATIONAL OFFICE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO]	EP
2026-07-09	PG25	LAPSED IN A CONTRACTING STATE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO]	EP
2026-07-10	PGFP	ANNUAL FEE PAID TO NATIONAL OFFICE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO]	EP
2026-07-11	PGFP	ANNUAL FEE PAID TO NATIONAL OFFICE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO]	EP
2026-07-15	PG25	LAPSED IN A CONTRACTING STATE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO]	EP
2026-07-17	PG25	LAPSED IN A CONTRACTING STATE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO]	EP
2026-07-18	PG25	LAPSED IN A CONTRACTING STATE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO]	EP
2026-07-21	PG25	LAPSED IN A CONTRACTING STATE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO]	EP
2026-07-23	PGFP	ANNUAL FEE PAID TO NATIONAL OFFICE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO]	EP
2026-07-25	PG25	LAPSED IN A CONTRACTING STATE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO]	EP
2026-08-06	PG25	LAPSED IN A CONTRACTING STATE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO]	EP
2026-09-11	PLBI	OPPOSITION FILED	EP
2026-09-16	REG	REFERENCE TO A NATIONAL CODE	EP
2026-09-21	PLAX	NOTICE OF OPPOSITION AND REQUEST TO FILE OBSERVATION + TIME LIMIT SENT	EP
2026-09-09	REG	REFERENCE TO A NATIONAL CODE	EP
2026-10-14	26	OPPOSITION FILED	EP

Patent & Non-Patent Citations

Cited documents and prior art referenced in search and examination reports.

10 Citations

Cited Patent Documents

EP0865851 1998-09-23

Espacenet

WO0013824 2000-03-16

Espacenet

EP0802006 1997-10-22

Espacenet

EP1332815 2003-08-06

Espacenet

WO9930859 1999-06-24

Espacenet

JP5157660

Espacenet

JP2009291925

Espacenet

JP2781619

Espacenet

WO2017093997

Espacenet

US2014234040 2014-08-21

Espacenet

Worldwide Patent Family

Related applications and patents in the same INPADOC worldwide family.

2 Family Members

Country	Publication Number	Kind	Publication Date	Action
EP	EP3421159A1	A1	2019-01-02	Espacenet
EP	EP3421159B1	B1	2025-12-10	Espacenet

Official File Inspection EPC Art. 128 Public Dossier

Complete European Patent Register Dossier (148 Total Documents)

The full inspection file for Application EP17178058 contains 148 total documents, including all notices of opposition, proprietor counter-statements, examination communications, third-party observations, and procedural forms. Below are all major recorded procedural filings and publication specifications.

Open 148-Doc Register Dossier

Dossier Filing

Date: 2026-07-03 Procedure: Examination 0009250

Inspect on Register

DOUBLE ENDED CUTTING INSERT FOR PARTING

Patent Abstract / Summary

IPC Classifications

Priority Claims

Designated Contracting States (38 EPC States)

Parties & Representation

Applicants

Inventors (1)

Representatives / Agents

Key Procedural Dates

Patent Oppositions

Iscar Ltd.

Legal Status & Event History

Patent & Non-Patent Citations

Cited Patent Documents

Worldwide Patent Family

Complete European Patent Register Dossier (148 Total Documents)

Recorded Filings & Patent Specifications

European Patent Specification - Granted Patent (B1)

Official European Patent Register Full Dossier

European Patent Application with Search Report (A1)

Invitation to proprietor to file observations on the notice of opposition

New entry: Communication of a notice of opposition and request to file observations + time limit

Opposition filed

Lapse of the patent in a contracting state

Lapse of the patent in a contracting state

Lapse of the patent in a contracting state

Lapse of the patent in a contracting state

Lapse of the patent in a contracting state

Lapse of the patent in a contracting state

Lapse of the patent in a contracting state

Lapse of the patent in a contracting state

Lapse of the patent in a contracting state

Lapse of the patent in a contracting state

(Expected) grant

New entry: Payment of fee for grant

New entry: Payment of fee for publishing/printing

New entry: Receipt of the translation of the claim(s)

Intention to grant the patent

New entry: Communication of intention to grant a patent

New entry: Renewal fee paid

Renewal fee payment

New entry: Renewal fee paid

Renewal fee payment

New entry: Renewal fee paid

Renewal fee payment

New entry: Reply to examination report

New entry: Renewal fee paid

Renewal fee payment

First examination report

New entry: Despatch of examination report + time limit

Communication from the examining division

New entry: Renewal fee paid

Renewal fee payment

New entry: Renewal fee paid

Renewal fee payment

The date on which the examining division becomes responsible, has been established

Request for examination filed

Change - designated states

Amendment by applicant

New entry: Renewal fee paid

Date on which the examining division has become responsible

Amendments

Renewal fee payment

Publication in section I.1 EP Bulletin

Change - representative

Change - representative

Language of the procedure

International searching authority