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Official data from INPI

PROCESSO PARA A PREPARAÇÃO DE HIDROCARBONETOS POR REAÇÃO CATALÍTICA DE MONÓXIDO DE CARBONO E HIDROGÊNIO

ConcedidaInvention Patent

Application data

Number

PI8304109

Type

Invention Patent

Filing

08/01/1983

Publication

03/07/1984

Progress at the INPI

  1. Filing08/01/83
  2. Publication03/07/84
  3. Examination05/27/86
  4. Allowance02/09/88
  5. Grant02/28/89
  6. Expired07/01/08

The letters patent expired on 07/01/2008: 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: 02/28/1989. 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. B. (pessoa física)

Technical data

IPC Classification

No IPC classification.

Priority claims

NL

8203066 · 08/02/1982

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

02/28/1989

RPI 958

110

10/25/1988

RPI 940

Recurso

#12.1

05/31/1988

RPI 919

Deferimento

#9.1

02/09/1988

RPI 903

Pedido de certificado de adição de invenção

#5.1

10/07/1986

RPI 833

Solicitação de exame técnico

#4.1

05/27/1986

RPI 814

Publicação do pedido de patente

#3.1

03/07/1984

RPI 698

Pedido de patente depositado

#2.1

10/11/1983

RPI 677

Carta-patente expirada

#21.1

Patente extinta em 01/08/98

07/01/2008

RPI 1956

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