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Official data from INPI

PROCESSO PARA CONTROLAR ALVEJAMENTO DE POLPA MECÂNICA,TERMO-MECÂNICA OU QUÍMIO-MECÂNICA EM MAIS DE UM ESTÁGIO

Em AnáliseInvention PatentPCT · SE1987000467

Application data

Number

PI8707508

Type

Invention Patent

Filing

10/14/1987

Publication

02/21/1989

PCT

SE1987000467

Progress at the INPI

  1. Filing10/14/87
  2. Publication02/21/89
  3. Examination06/27/89
  4. Allowance03/14/95
  5. Grant09/26/95
  6. Expired07/29/08

The letters patent expired on 07/29/2008: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

Talk to a specialist

Latest action published by the INPI: 06/27/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Eka Nobel Ab

SE

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Inventors

G. A. (pessoa física)

SE

J. H. (pessoa física)

SE

Technical data

IPC Classification

Priority claims

SE

8604459 · 10/20/1986

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

06/27/1989

RPI 975

Notificação de entrada na fase nacional - PCT

#1.3

02/21/1989

RPI 957

Carta-patente expirada

#21.1

Patente extinta em 14/10/2002

07/29/2008

RPI 1960

Concessão da patente

#16.1

09/26/1995

RPI 1295

Deferimento

#9.1

03/14/1995

RPI 1267

Exigência - art. 36 da LPI

#6.1

03/03/1992

RPI 1109

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