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Official data from INPI

PROCESSO PARA PRODUZIR FERRO GUSA LIQUIDO OU MATERIA-PRIMA PARA ACO,ASSIM COMO UMA INSTALACAO PARA A REALIZACAO DO PROCESSO

ConcedidaInvention Patent

Application data

Number

PI8102003

Type

Invention Patent

Filing

04/03/1980

Publication

10/06/1981

Progress at the INPI

  1. Filing04/03/80
  2. Publication10/06/81
  3. Examination09/27/83
  4. Allowance07/14/87
  5. Grant11/24/87
  6. Terminated08/30/94

The patent was granted on 11/24/1987 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: 11/24/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

VOEST ALPINE AG [AT]

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Inventors

L. W. (pessoa física)

S. K. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

11/24/1987

RPI 892

Deferimento

#9.1

07/14/1987

RPI 873

Exigência - art. 36 da LPI

#6.1

10/21/1986

RPI 835

Conhecimento de parecer técnico

#7.1

06/25/1985

RPI 766

Republicação - classificação IPC

#15.11

01/08/1985

RPI 742

Exigência - art. 36 da LPI

#6.1

06/19/1984

RPI 713

Solicitação de exame técnico

#4.1

09/27/1983

RPI 675

14.1

03/22/1983

RPI 648

Publicação do pedido de patente

#3.1

10/06/1981

RPI 572

Anuidade - prazo legal encerrado

#18.2

08/30/1994

RPI 1239

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