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HOLLOW WALL BOX

Publication No. EP3913758

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App No. EP21174456

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Filed by Kaiser GmbH & Co. KG

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Filed on 2021-05-18

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Issued/Published on 2026-01-07

Official EPO Register

Publication No. EP3913758 A1

Application No. EP21174456 Filed: 2021-05-18

Grant Date 2026-01-07 Mention of grant

Active Oppositions 1 Active EPO Oppositions

Patent Abstract / Summary

Die Erfindung betrifft eine Hohlwanddose (1) für elektrotechnische Zwecke umfassend einen Dosenkörper (2) mit einem Dosenboden (3) und einer in den Dosenboden übergehende, sich in eine axiale Richtung (y) erstreckende röhrenförmige Seitenwand (4), welche einen Installationsraum (7) bilden. Mindestens ein Spannelement (8) ist entlang der Seitenwand (4) in axialer Richtung (y) verschiebbar angeordnet. Auf dem Spannelement ist mindestens ein Halteelement (10)zum Abstützen der Hohlwanddose (1) an einer Rückseite der Hohlwand angeordnet.

IPC Classifications

H02G3/12

Priority Claims

DE 202010113550 Date: 2020-05-19

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

Kaiser GmbH & Co. KG

Ramsloh 4, 58579 Schalksmühle

Inventors (1)

KAISER, Burkard

58509 Lüdenscheid

Representatives / Agents

Rentsch Partner AG

Kirchenweg 8, Postfach

Keil & Schaafhausen Patentanwälte PartGmbB

Bockenheimer Landstraße 25, 60325 Frankfurt am Main

Key Procedural Dates

Request-For-Examination 2022-03-11

Mention Of Grant Published 2026-01-07

First-Examination-Report-Despatched 2023-08-22

Legal Status & Event History

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

43 Events Recorded

Date	Code	Event Description	Auth
2021-11-24	B565	ISSUANCE OF SEARCH RESULTS UNDER RULE 164(2) EPC	EP
2021-11-24	AK	DESIGNATED CONTRACTING STATES	EP
2021-10-22	PUAI	PUBLIC REFERENCE MADE UNDER ARTICLE 153(3) EPC TO A PUBLISHED INTERNATIONAL APPLICATION THAT HAS ENTERED THE EUROPEAN PHASE	EP
2021-10-22	STAA	INFORMATION ON THE STATUS OF AN EP PATENT APPLICATION OR GRANTED EP PATENT	EP
2022-03-18	STAA	INFORMATION ON THE STATUS OF AN EP PATENT APPLICATION OR GRANTED EP PATENT	EP
2022-04-20	17P	REQUEST FOR EXAMINATION FILED	EP
2022-04-20	RBV	DESIGNATED CONTRACTING STATES (CORRECTED)	EP
2023-06-21	P01	OPT-OUT OF THE COMPETENCE OF THE UNIFIED PATENT COURT (UPC) REGISTERED	EP
2023-08-18	STAA	INFORMATION ON THE STATUS OF AN EP PATENT APPLICATION OR GRANTED EP PATENT	EP
2023-09-20	17Q	FIRST EXAMINATION REPORT DESPATCHED	EP
2025-10-05	GRAP	DESPATCH OF COMMUNICATION OF INTENTION TO GRANT A PATENT	EP
2025-10-05	STAA	INFORMATION ON THE STATUS OF AN EP PATENT APPLICATION OR GRANTED EP PATENT	EP
2025-11-05	INTG	INTENTION TO GRANT ANNOUNCED	EP
2025-11-28	GRAS	GRANT FEE PAID	EP
2025-12-05	GRAA	(EXPECTED) GRANT	EP
2025-12-05	STAA	INFORMATION ON THE STATUS OF AN EP PATENT APPLICATION OR GRANTED EP PATENT	EP
2026-01-07	AK	DESIGNATED CONTRACTING STATES	EP
2026-01-07	REG	REFERENCE TO A NATIONAL CODE	EP
2026-01-15	REG	REFERENCE TO A NATIONAL CODE	EP
2026-01-28	REG	REFERENCE TO A NATIONAL CODE	EP
2026-04-08	REG	REFERENCE TO A NATIONAL CODE	EP
2026-06-15	PGFP	ANNUAL FEE PAID TO NATIONAL OFFICE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO]	EP
2026-07-07	PG25	LAPSED IN A CONTRACTING STATE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO]	EP
2026-07-08	PG25	LAPSED IN A CONTRACTING STATE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO]	EP
2026-07-10	REG	REFERENCE TO A NATIONAL CODE	EP
2026-07-09	PGFP	ANNUAL FEE PAID TO NATIONAL OFFICE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO]	EP
2026-07-10	PG25	LAPSED IN A CONTRACTING STATE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO]	EP
2026-07-11	PG25	LAPSED IN A CONTRACTING STATE [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
2026-07-14	PG25	LAPSED IN A CONTRACTING STATE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO]	EP
2026-07-15	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	PGFP	ANNUAL FEE PAID TO NATIONAL OFFICE [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
2026-07-24	PG25	LAPSED IN A CONTRACTING STATE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO]	EP
2026-07-28	PG25	LAPSED IN A CONTRACTING STATE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO]	EP
2026-10-02	PLBI	OPPOSITION FILED	EP
2026-10-06	PG25	LAPSED IN A CONTRACTING STATE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO]	EP
2026-10-07	REG	REFERENCE TO A NATIONAL CODE	EP
2026-09-30	REG	REFERENCE TO A NATIONAL CODE	EP
2026-10-18	PLAX	NOTICE OF OPPOSITION AND REQUEST TO FILE OBSERVATION + TIME LIMIT SENT	EP

Worldwide Patent Family

Related applications and patents in the same INPADOC worldwide family.

4 Family Members

Country	Publication Number	Kind	Publication Date	Action
EP	EP3913758A1	A1	2021-11-24	Espacenet
EP	EP3913758B1	B1	2026-01-07	Espacenet
DE	DE102020113550A1	A1	2021-11-25	Espacenet
PL	PL3913758T3	T3	2026-05-04	Espacenet

Official File Inspection EPC Art. 128 Public Dossier

Complete European Patent Register Dossier (148 Total Documents)

The full inspection file for Application EP21174456 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: 2025-12-05 Procedure: Grant 0009210

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HOLLOW WALL BOX

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

f-tronic GmbH

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

Lapse of the patent in a contracting state

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

(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: Reply to examination report

New entry: Despatch of examination report + time limit

Communication from the examining division

First examination report

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

Date on which the examining division has become responsible

Amendments

Publication in section I.1 EP Bulletin

Change - representative

Language of the procedure

International searching authority