Patent details

Basic Information

Publication number:

EP0384964

PCT Application Number:

Type:

European Patent Granted for LU

Legal Status:

Lapsed

Application number:

EP891207664

PCT Publication Number:

First applicant's nationality:

Translation Language:

EPO Publication Language:

German

English Title of Invention:

Process and apparatus for induction hardening of the corrugated surfaces of a workpiece.

French Title of Invention:

Procédé et dispositif pour le durcissement par induction des surfaces ondulées d'une pièce.

German Title of Invention:

Verfahren und Vorrichtung zum induktiven HÄrten der gewellten OberflÄche eines WerkstÜcks.

SPC Number:

Dates

Filing date:

09/11/1989

Grant date:

06/07/1994

EP Publication Date:

06/07/1994

PCT Publication Date:

Claims Translation Received Date:

Translations Received Date (B1 EP Publication):

Translations Received Date (B2 EP Publication):

Translations Received Date (B3 EP Publication):

Publication date:

05/09/1990

EP B1 Publication Date:

06/07/1994

EP B2 Publication Date:

EP B3 Publication Date:

Lapsed date:

30/11/1994

Expiration date:

09/11/2009

Renunciation date:

Revocation date:

Annulment date:

Owner

From:

09/11/1989

 

 

Name:

TOCCO INC.

Address:

Sand Mountain Industrial Park, Boaz Alabama 35957, United States (US)

Inventor

1

Name:

Balzer Norbert R.

Address:

United States (US)

2

Name:

Novorsky Donald E.

Address:

United States (US)

3

Name:

Mucha George M.

Address:

United States (US)

4

Name:

Pfaffmann George D.

Address:

United States (US)

Priority

Priority Number:

318347

Priority Date:

02/03/1989

Priority Country:

United States (US)

Classification

Main IPC Class:

C21D 9/32;

Filing date	Document type	Number of pages