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Official data from INPI

PROCESSO PARA PRODUÇÃO DE FERRO REDUZIDO E ÓLEO LEVE A PARTIR DE MINÉRIO DE FERRO E ÓLEO PESADO.

Em ExigênciaInvention Patent

Application data

Number

PI8503665

Type

Invention Patent

Filing

08/02/1985

Publication

05/06/1986

Progress at the INPI

  1. Filing08/02/85
  2. Publication05/06/86
  3. Examination08/05/86
  4. Allowance05/25/93
  5. Grant10/26/93
  6. Terminated05/28/96

The patent was granted on 10/26/1993 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

Talk to a specialist

Latest action published by the INPI: 05/30/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

The Research Association for Residual Oil Processing

JP

Inventors

K. S. (pessoa física)

JP

K. M. (pessoa física)

JP

M. O. (pessoa física)

JP

R. W. (pessoa física)

JP

T. A. (pessoa física)

JP

Technical data

IPC Classification

Priority claims

JP

59-163950 · 08/03/1984

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

6.2

05/30/1989

RPI 971

Solicitação de exame técnico

#4.1

08/05/1986

RPI 824

Publicação do pedido de patente

#3.1

05/06/1986

RPI 811

Pedido de patente depositado

#2.1

09/24/1985

RPI 779

Anuidade - prazo legal encerrado

#18.2

05/28/1996

RPI 1330

Concessão da patente

#16.1

10/26/1993

RPI 1195

Deferimento

#9.1

05/25/1993

RPI 1173

Exigência - art. 36 da LPI

#6.1

09/29/1992

RPI 1139

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