Patent details

Basic Information

Publication number:

EP0555826

PCT Application Number:

Type:

European Patent Granted for LU

Legal Status:

Lapsed

Application number:

EP931020556

PCT Publication Number:

First applicant's nationality:

Translation Language:

EPO Publication Language:

German

English Title of Invention:

Process for utilisation of draff, used kieselguhr containing filter aids and paper products

French Title of Invention:

Procédé d'utilisation de drêche, d'adjurants de filtrage usés contenant de kieselguhr et de produits de papier

German Title of Invention:

Verfahren zur Verwertung von Trebern, gebrauchten kieselgurhaltigen Filterhilfsstoffen und Papiererzeugnissen

SPC Number:

Dates

Filing date:

10/02/1993

Grant date:

22/04/1998

EP Publication Date:

22/04/1998

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:

18/08/1993

EP B1 Publication Date:

22/04/1998

EP B2 Publication Date:

EP B3 Publication Date:

Lapsed date:

10/02/1999

Expiration date:

10/02/2013

Renunciation date:

Revocation date:

Annulment date:

Owner

From:

10/02/1993

 

 

Name:

Meyer-Pittroff Roland, Prof. Dr.-Ing.

Address:

GanzenmÜllerstrasse 29, D-85354 Freising, Germany (DE)

Name:

Russ Winfried, Dipl.-Ing.

Address:

Waldbadstrasse 10, D-85405 Nandlstadt, Germany (DE)

Inventor

1

Name:

Russ Winfried, Dipl.-Ing.

Address:

Germany (DE)

2

Name:

Meyer-Pittroff Roland, Prof. Dr.-Ing.

Address:

Germany (DE)

Priority

1

Priority Number:

4204230

Priority Date:

13/02/1992

Priority Country:

Germany (DE)

2

Priority Number:

4211122

Priority Date:

03/04/1992

Priority Country:

Germany (DE)

Classification

Main IPC Class:

C04B 18/24;

Filing date	Document type	Number of pages