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Official data from INPI

PROCESSO PARA PREPARAR UM COMPONENTE CATALÍTICO SÓLIDO, E, PROCESSO PARA A POLIMERIZAÇÃO DE ALQUENOS

Arquivada/ExtintaInvention Patent

Application data

Number

PI8904261

Type

Invention Patent

Filing

08/24/1989

Publication

04/10/1990

Progress at the INPI

  1. Filing08/24/89
  2. Publication04/10/90
  3. Examination06/09/92
  4. Allowance07/07/98
  5. Grant12/29/98
  6. Expired12/26/12

The letters patent expired on 12/26/2012: 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: 12/26/2012. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Montell Technology Company B.V

NL

Shell Internationale Research Maatschappij B.V

NL

See this company's full portfolio

Inventors

A. V. (pessoa física)

NL

J. C. (pessoa física)

NL

R. G. (pessoa física)

NL

Technical data

IPC Classification

Priority claims

GB

8820357.5 · 08/26/1988

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 24/08/2009

12/26/2012

RPI 2190

Concessão da patente

#16.1

12/29/1998

RPI 1460

Deferimento

#9.1

07/07/1998

RPI 1437

Transferência deferida

#25.1

09/16/1997

RPI 1398

Exigência - art. 36 da LPI

#6.1

01/16/1996

RPI 1311

Exigência - art. 36 da LPI

#6.1

07/18/1995

RPI 1285

Solicitação de exame técnico

#4.1

06/09/1992

RPI 1123

Publicação do pedido de patente

#3.1

04/10/1990

RPI 1013

Pedido de patente depositado

#2.1

01/09/1990

RPI 1001

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