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Official data from INPI

PROCESSO PARA CONVERTER CATALITICAMENTE ÓLEOS DE HIDROCARBONETOS RESIDUAIS

Em AnáliseInvention Patent

Application data

Number

PI8503785

Type

Invention Patent

Filing

08/09/1985

Publication

12/09/1986

Progress at the INPI

  1. Filing08/09/85
  2. Publication12/09/86
  3. Examination12/06/88
  4. Allowance01/26/93
  5. Grant03/28/95
  6. Expired07/15/08

The letters patent expired on 07/15/2008: 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: 12/06/1988. 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

C. A. (pessoa física)

US

D. W. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

676,742 · 11/30/1984

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

12/06/1988

RPI 946

Publicação do pedido de patente

#3.1

12/09/1986

RPI 842

Pedido de patente depositado

#2.1

10/22/1985

RPI 783

Carta-patente expirada

#21.1

Patente extinta em 09/08/2000

07/15/2008

RPI 1958

Concessão da patente

#16.1

03/28/1995

RPI 1269

110

12/13/1994

RPI 1254

Recurso

#12.1

06/01/1993

RPI 1174

13.2

06/01/1993

RPI 1174

Notificação para pagamento de retribuição

#13.1

05/11/1993

RPI 1171

Deferimento

#9.1

01/26/1993

RPI 1156

Exigência - art. 36 da LPI

#6.1

07/16/1991

RPI 1076

Exigência - art. 36 da LPI

#6.1

12/26/1990

RPI 1047

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