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Official data from INPI

PROCESSO PARA A PRODUÇÃO DE FERRO GUSA E USINA PARA A PRÁTICA DO PROCESSO

Arquivada/ExtintaInvention Patent

Application data

Number

PI8905412

Type

Invention Patent

Filing

10/24/1989

Publication

05/22/1990

Progress at the INPI

  1. Filing10/24/89
  2. Publication05/22/90
  3. Examination06/16/92
  4. Allowance12/31/96
  5. Grant09/30/97
  6. Expired05/21/13

The letters patent expired on 05/21/2013: 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: 05/21/2013. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Deutsche Voest-Alpine Industrieanlagenbau GmbH

DE

See this company's full portfolio

Inventors

D. K. (pessoa física)

AT

Technical data

IPC Classification

Priority claims

AT

A 2642/88 · 10/25/1988

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 24/10/2009

05/21/2013

RPI 2211

Concessão da patente

#16.1

09/30/1997

RPI 1400

Notificação para pagamento de retribuição

#13.1

05/06/1997

RPI 1379

Deferimento

#9.1

12/31/1996

RPI 1361

6.2

03/12/1996

RPI 1319

Solicitação de exame técnico

#4.1

06/16/1992

RPI 1124

Publicação do pedido de patente

#3.1

05/22/1990

RPI 1019

Pedido de patente depositado

#2.1

03/01/1990

RPI 1007

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