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Official data from INPI

PROCESSO E APARELHO PARA FABRICAÇÃO DE POLPA DE CELULOSE COM PROPRIEDADES DE QUALIDADE APERFEIÇOADAS

Arquivada/ExtintaInvention PatentPCT · SE1990000648

Application data

Number

PI9006945

Type

Invention Patent

Filing

10/09/1990

Publication

10/08/1991

PCT

SE1990000648

Progress at the INPI

  1. Filing10/09/90
  2. Publication10/08/91
  3. Examination03/24/92
  4. Allowance10/29/96
  5. Grant06/24/97
  6. Expired05/28/13

The letters patent expired on 05/28/2013: 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: 05/28/2013. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

N. W. (pessoa física)

SE

Inventors

N. W. (pessoa física)

SE

Technical data

IPC Classification

Priority claims

EP

89850341.2 · 10/10/1989

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 09/10/2010

05/28/2013

RPI 2212

Concessão da patente

#16.1

06/24/1997

RPI 1386

Deferimento

#9.1

10/29/1996

RPI 1352

Exigência - art. 36 da LPI

#6.1

01/02/1996

RPI 1309

Solicitação de exame técnico

#4.1

03/24/1992

RPI 1112

Notificação de entrada na fase nacional - PCT

#1.3

10/08/1991

RPI 1088

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