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Official data from INPI

SEM TITULO

ConcedidaInvention Patent

Application data

Number

PI8302046

Type

Invention Patent

Filing

04/20/1983

Publication

12/27/1983

Progress at the INPI

  1. Filing04/20/83
  2. Publication12/27/83
  3. Examination05/29/84
  4. Allowance12/29/87
  5. Grant07/26/88
  6. Expired07/01/08

The letters patent expired on 07/01/2008: 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: 07/26/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Arbed S.A.

LU

Institut de Recherches de la Siderurgie Française - IRSID

FR

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Inventors

H. R. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

07/26/1988

RPI 927

Notificação para pagamento de retribuição

#13.1

05/10/1988

RPI 916

Deferimento

#9.1

12/29/1987

RPI 897

Exigência - art. 36 da LPI

#6.1

08/18/1987

RPI 878

Conhecimento de parecer técnico

#7.1

05/14/1985

RPI 760

Solicitação de exame técnico

#4.1

05/29/1984

RPI 710

Publicação do pedido de patente

#3.1

12/27/1983

RPI 688

Pedido de patente depositado

#2.1

06/07/1983

RPI 659

Carta-patente expirada

#21.1

Patente extinta em 20/04/98

07/01/2008

RPI 1956

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