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Official data from INPI

PROCESSO PARA O BRANQUEAMENTO DE UMA PASTA DE PAPEL E APLICAÇÃO DO MESMO

ArquivadaInvention Patent

Application data

Number

PI9402833

Type

Invention Patent

Filing

07/15/1994

Publication

04/04/1995

Progress at the INPI

  1. Filing07/15/94
  2. Publication04/04/95
  3. Examination
  4. Allowance04/30/02
  5. Abandoned
  6. In force

The application was allowed on 04/30/2002 but abandoned for failure to pay the grant fee (art. 38 of the Brazilian IP Act). The letters patent were never issued.

Talk to a specialist

Latest action published by the INPI: 01/07/2003. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Solvay

BE

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Inventors

E. B. (pessoa física)

BE

P. L. (pessoa física)

BE

R. D. (pessoa física)

BE

Technical data

IPC Classification

Priority claims

BE

09300745 · 07/15/1993

Abstract

Processo para o branqueamento de uma pasta de papel por meio de sequências de etapas de tratamento isento de reagentes clorados ou cloro de tipo TCF ou ECF compreendendo uma etapa de tratamento suplementar com, pelo menos, uma enzima.

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Arquivamento - Art. 38 §2° da LPI

#11.4

01/07/2003

RPI 1670

Deferimento

#9.1

04/30/2002

RPI 1634

Publicação do pedido de patente

#3.1

04/04/1995

RPI 1270

Pedido de patente depositado

#2.1

09/13/1994

RPI 1241

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