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Official data from INPI

PROCESSO PARA PREPARAÇÃO DE UM AGREGADO FIBROSO CELULÓSICO

Arquivada/ExtintaInvention Patent

Application data

Number

PI8906506

Type

Invention Patent

Filing

12/15/1989

Publication

08/28/1990

Progress at the INPI

  1. Filing12/15/89
  2. Publication08/28/90
  3. Examination10/13/92
  4. Allowance04/09/96
  5. Grant03/25/97
  6. Expired12/29/09

The letters patent expired on 12/29/2009: 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: 12/29/2009. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Plato Beheer B.V.

NL

Plato International Technology B.V

NL

Shell Internationale Research Maatschappij B.V

NL

Inventors

A. H. (pessoa física)

NL

H. R. (pessoa física)

NL

J. D. (pessoa física)

NL

Technical data

IPC Classification

Priority claims

GB

8829444 · 12/16/1988

GB

8903012.6 · 02/10/1989

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 15/12/2004

12/29/2009

RPI 2034

Transferência deferida

#25.1

Transferido de: Plato Beheer B.V.

08/23/2005

RPI 1807

Transferência deferida

#25.1

Transferido de: Shell Internationale Research Maatschappij B.V.

04/06/1999

RPI 1474

Concessão da patente

#16.1

03/25/1997

RPI 1373

Deferimento

#9.1

04/09/1996

RPI 1323

Exigência - art. 36 da LPI

#6.1

10/25/1994

RPI 1247

Solicitação de exame técnico

#4.1

10/13/1992

RPI 1141

Publicação do pedido de patente

#3.1

08/28/1990

RPI 1030

Pedido de patente depositado

#2.1

04/10/1990

RPI 1013

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