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Official data from INPI

PROCESSO PARA OBTENÇÃO DE METAIS E/OU GERAÇÃO DE ESCÓRIA A, PARTIR DE MINÉRIOS OXIDADOS

Em AnáliseInvention Patent

Application data

Number

PI8503358

Type

Invention Patent

Filing

07/15/1985

Publication

09/16/1986

Progress at the INPI

  1. Filing07/15/85
  2. Publication09/16/86
  3. Examination10/25/88
  4. Allowance09/25/90
  5. Grant03/26/91
  6. Terminated08/08/95

The patent was granted on 03/26/1991 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: 10/25/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

SKF Steel Engineering Ab.

SE

Inventors

J. F. (pessoa física)

S. E. (pessoa física)

SE

S. S. (pessoa física)

SE

Technical data

IPC Classification

Priority claims

SE

8405230-7 · 10/19/1984

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

10/25/1988

RPI 940

Publicação do pedido de patente

#3.1

09/16/1986

RPI 830

Pedido de patente depositado

#2.1

09/17/1985

RPI 778

Anuidade - prazo legal encerrado

#18.2

08/08/1995

RPI 1288

Concessão da patente

#16.1

03/26/1991

RPI 1060

Notificação para pagamento de retribuição

#13.1

01/08/1991

RPI 1049

Deferimento

#9.1

09/25/1990

RPI 1034

Exigência - art. 36 da LPI

#6.1

05/01/1990

RPI 1016

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