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Official data from INPI

PROCESSO E INSTALAÇÃO PARA A REMOÇÃO DE INERTES SOLÚVEIS DOS LICORES DE COZIMENTO NA PRODUÇÃO DE CELULOSE.

Em AnáliseInvention Patent

Application data

Number

PI8603157

Type

Invention Patent

Filing

07/07/1986

Publication

10/14/1986

Progress at the INPI

  1. Filing07/07/86
  2. Publication10/14/86
  3. Examination12/30/86
  4. Allowance11/24/92
  5. Grant09/28/93
  6. Expired07/22/08

The letters patent expired on 07/22/2008: 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: 12/30/1986. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Champion Papel e Celulose Ltda

SP, BR

International Paper do Brasil Ltda.

SP, BR

Inventors

G. C. (pessoa física)

BR

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

12/30/1986

RPI 845

Publicação antecipada

#3.2

10/14/1986

RPI 834

Pedido de patente depositado

#2.1

10/07/1986

RPI 833

Carta-patente expirada

#21.1

Patente extinta em 07/07/2001

07/22/2008

RPI 1959

Alteração de nome deferida

#25.4

Alterado de Champion Papel e Celulose Ltda.

05/15/2001

RPI 1584

Concessão da patente

#16.1

09/28/1993

RPI 1191

Notificação para pagamento de retribuição

#13.1

06/15/1993

RPI 1176

9.1.3

03/02/1993

RPI 1161

Deferimento

#9.1

11/24/1992

RPI 1147

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