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Official data from INPI

PROCESSO PARA A PREPARAÇÃO DE HIDROCARBONETOS

Em AnáliseInvention Patent

Application data

Number

PI8600145

Type

Invention Patent

Filing

01/16/1986

Publication

09/23/1986

Progress at the INPI

  1. Filing01/16/86
  2. Publication09/23/86
  3. Examination12/22/92
  4. Allowance04/25/95
  5. Grant10/31/95
  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: 08/30/1988. 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

D. B. (pessoa física)

NL

S. S. (pessoa física)

NL

Technical data

IPC Classification

Priority claims

NL

8500121 · 01/18/1985

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

15.9

08/30/1988

RPI 932

Publicação do pedido de patente

#3.1

09/23/1986

RPI 831

Pedido de patente depositado

#2.1

04/15/1986

RPI 808

Carta-patente expirada

#21.1

Patente extinta em 16/01/2001

07/22/2008

RPI 1959

Concessão da patente

#16.1

10/31/1995

RPI 1300

Deferimento

#9.1

04/25/1995

RPI 1273

Exigência - art. 36 da LPI

#6.1

06/28/1994

RPI 1230

Solicitação de exame técnico

#4.1

12/22/1992

RPI 1151

15.18

04/09/1991

RPI 1062

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