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Official data from INPI

ELEMENTO REFINADOR DE POLPA CELULÓSICA, REFINADOR DE POLPA CELULÓSICA, PROCESSO DE REFINO DE UMA PASTA DE MATERIAL FIBROSO CELULÓSICO E POLPA DE PAPEL

Em AnáliseInvention Patent

Application data

Number

PI9004395

Type

Invention Patent

Filing

09/04/1990

Publication

09/10/1991

Progress at the INPI

  1. Filing09/04/90
  2. Publication09/10/91
  3. Examination10/26/93
  4. Allowance
  5. Grant
  6. In force

Published on 09/10/1991, the application is awaiting technical examination at the INPI, which decides whether the invention meets the patentability requirements.

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Latest action published by the INPI: 11/28/1995. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Kamyr Ab.

SE

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Inventors

B. N. (pessoa física)

SE

Technical data

IPC Classification

Priority claims

US

402.541 · 09/05/1989

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Retificação

#15.3

11/28/1995

RPI 1304

Solicitação de exame técnico

#4.1

10/26/1993

RPI 1195

Publicação do pedido de patente

#3.1

09/10/1991

RPI 1084

Pedido de patente depositado

#2.1

03/12/1991

RPI 1058

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