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Official data from INPI

AGENTE DE TRATAMENTO METALÚRGICO PARA METAIS FERROSOS EM FUSÃO

PublicadaInvention Patent

Application data

Number

PI8802462

Type

Invention Patent

Filing

05/20/1988

Publication

12/20/1988

Progress at the INPI

  1. Filing05/20/88
  2. Publication12/20/88
  3. Examination09/25/90
  4. Allowance03/01/95
  5. Grant08/29/95
  6. Expired09/02/08

The letters patent expired on 09/02/2008: 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: 12/20/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Foseco International Limited, companhia britânica

GB

See this company's full portfolio

Inventors

F. S. (pessoa física)

DE

Technical data

IPC Classification

Priority claims

GB

8712168 · 05/22/1987

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

12/20/1988

RPI 948

Pedido de patente depositado

#2.1

10/11/1988

RPI 938

Carta-patente expirada

#21.1

Patente extinta em 20/05/2003

09/02/2008

RPI 1965

Concessão da patente

#16.1

08/29/1995

RPI 1291

Deferimento

#9.1

03/01/1995

RPI 1265

Conhecimento de parecer técnico

#7.1

06/21/1994

RPI 1229

Solicitação de exame técnico

#4.1

09/25/1990

RPI 1034

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