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European patent · EP0003815 · Deleted

Register entry

Publication number
EP0003815
Application number
EP79100475
Kind
European patent with effect for Switzerland and Liechtenstein
Status
Deleted
Specification
Granted
Filed
Feb 19, 1979
Published
Sep 5, 1979
Granted
Oct 14, 1981
Deleted
Oct 14, 1981
Reason
Revoked in opposition
IPC classes
E21B 10/00 (2006.01)
Priority
DE A 2807197 20.02.1978
Filing language
German
Source
Swissreg

History

What the Federal Institute of Intellectual Property published about this title, newest first.

  1. Oct 24, 2024

    Change

    Published in Swissreg on 24.10.2024

Parties

Holder

Gebr. Heller Verwaltungsgesellschaft mbH

Uphuser Heerstrasse 102, Achim-Uphusen, DE

Agent

PATENTANWALTSBUREAU ISLER & SCHMID

Patentanwaltsbureau Isler & Schmid

Walchestrasse 23, 8006 Zürich

Inventor

Kleine, Werner

D-2807 Achim, DE

The register names each party by name and address. A holder or agent is linked to an organization where exactly one entity of the commercial register bears its name; the street of a party not so recognised is not shown here.