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Official data from INPI

PROCESSO PARA A PRODUÇÃO DE FERRO GUSA A PARTIR DE MINÉRIO FINO

Em AnáliseInvention Patent
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Application data

Number

PI8604770

Type

Invention Patent

Filing

10/02/1986

Publication

06/30/1987
View on INPI

Progress at the INPI

  1. Filing10/02/86
  2. Publication06/30/87
  3. Examination10/31/89
  4. Allowance08/02/94
  5. Grant04/25/95
  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.

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Latest action published by the INPI: 10/31/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Deustsche Voest-Alpine Industrieanlagenbau GMBH

DE

Deutsche Voest-Alpine Industrieanlagenbau GMBH

DE

Inventors

D. H. (pessoa física)

DE

Technical data

IPC Classification

C21B 11/00

Priority claims

DE

P 35 35 572.7 · 10/03/1985

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

10/31/1989

RPI 993

Publicação do pedido de patente

#3.1

06/30/1987

RPI 871

Pedido de patente depositado

#2.1

04/07/1987

RPI 859

Carta-patente expirada

#21.1

Patente extinta em 02/10/2001

07/22/2008

RPI 1959

Concessão da patente

#16.1

04/25/1995

RPI 1273

Notificação para pagamento de retribuição

#13.1

11/29/1994

RPI 1252

Deferimento

#9.1

08/02/1994

RPI 1235

Exigência - art. 36 da LPI

#6.1

08/03/1993

RPI 1183

14.4

06/16/1992

RPI 1124

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