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Official data from INPI

PROCESSO PARA A HIDROGENAÇÃO DE ÓLEOS HIDROCARBONETOS

Prazo de SigiloInvention Patent

Application data

Number

PI8804053

Type

Invention Patent

Filing

08/11/1988

Publication

03/20/1990

Progress at the INPI

  1. Filing08/11/88
  2. Publication03/20/90
  3. Examination03/31/92
  4. Allowance01/09/96
  5. Grant12/31/96
  6. Expired09/02/08

The letters patent expired on 09/02/2008: 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: 01/03/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Shell Internationale Research Maatschappij B.V

NL

See this company's full portfolio

Inventors

A. L. (pessoa física)

FR

J. M. (pessoa física)

NL

Technical data

IPC Classification

Priority claims

FR

87 11591 · 08/14/1987

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Pedido de patente depositado

#2.1

01/03/1989

RPI 950

Carta-patente expirada

#21.1

Patente extinta em 11/08/2003

09/02/2008

RPI 1965

Concessão da patente

#16.1

12/31/1996

RPI 1361

Notificação para pagamento de retribuição

#13.1

07/02/1996

RPI 1335

Deferimento

#9.1

01/09/1996

RPI 1310

Exigência - art. 36 da LPI

#6.1

02/07/1995

RPI 1262

Solicitação de exame técnico

#4.1

03/31/1992

RPI 1113

Publicação do pedido de patente

#3.1

03/20/1990

RPI 1010

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