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Official data from INPI

COMPOSIÇÕES CATALISADORAS PARA PREPARAÇÃO DE COPOLÍMEROS DE MONÓXIDO DE CARBONO E COMPOSTOS OLEFINICAMENTE INSATURADOS E PROCESSO PARA A PREPARAÇÀO DE POLÍMEROS DE MONÓXIDO DE CARBONO E COMPOSTOS OLEFINICAMENTE INSATURADOS.

PublicadaInvention Patent

Application data

Number

PI8605593

Type

Invention Patent

Filing

11/12/1986

Publication

08/18/1987

Progress at the INPI

  1. Filing11/12/86
  2. Publication08/18/87
  3. Examination02/01/90
  4. Allowance10/26/93
  5. Grant05/31/94
  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: 08/18/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Shell Internationale Research Maatschappij B.V

NL

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Inventors

E. D. (pessoa física)

NL

R. W. (pessoa física)

NL

Technical data

Priority claims

NL

8503135 · 11/14/1985

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

08/18/1987

RPI 878

Pedido de patente depositado

#2.1

04/14/1987

RPI 860

Carta-patente expirada

#21.1

Patente extinta em 12/11/2001

07/22/2008

RPI 1959

Concessão da patente

#16.1

05/31/1994

RPI 1226

Deferimento

#9.1

10/26/1993

RPI 1195

Exigência - art. 36 da LPI

#6.1

05/11/1993

RPI 1171

Solicitação de exame técnico

#4.1

02/01/1990

RPI 1004

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