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Official data from INPI

PROCESSO PARA O CRAQUEAMENTO CATALÍTICO DE UMA CARGA DE ALIMENTAÇÃO DE HIDROCARBONETOS

Prazo de SigiloInvention Patent

Application data

Number

PI8904248

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: 11/21/1989. 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

I. M. (pessoa física)

NL

J. B. (pessoa física)

NL

Technical data

IPC Classification

Priority claims

GB

8820358.3 · 08/26/1988

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Pedido de patente depositado

#2.1

11/21/1989

RPI 996

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

Exigência - art. 36 da LPI

#6.1

10/01/1996

RPI 1348

Pedido de certificado de adição de invenção

#5.1

10/13/1992

RPI 1141

Solicitação de exame técnico

#4.1

06/09/1992

RPI 1123

Publicação do pedido de patente

#3.1

04/10/1990

RPI 1013

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