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Official data from INPI

PROCESSO DE FABRICAÇÃO DE ARTIGO DE METAL LEVE POR MEIO DE FORMAÇÃO POR COMPRESSÃO DE METAL LÍQUIDO

DeferidaInvention Patent
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Application data

Number

PI8407035

Type

Invention Patent

Filing

04/18/1984

Publication

07/30/1985
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Progress at the INPI

  1. Filing04/18/84
  2. Publication07/30/85
  3. Examination01/21/86
  4. Allowance10/24/89
  5. Grant05/29/90
  6. Expired07/08/08

The letters patent expired on 07/08/2008: 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: 10/24/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

GKN Technology Limited.

GB

Inventors

J. B. (pessoa física)

GB

Technical data

IPC Classification

B22C 9/10B22D 15/02

Priority claims

GB

8311262 · 04/26/1983

GB

8311264 · 04/26/1983

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Deferimento

#9.1

10/24/1989

RPI 992

Exigência - art. 36 da LPI

#6.1

06/06/1989

RPI 972

4.1.2

03/11/1986

RPI 803

Solicitação de exame técnico

#4.1

01/21/1986

RPI 796

Notificação de entrada na fase nacional - PCT

#1.3

07/30/1985

RPI 771

Carta-patente expirada

#21.1

Patente extinta em 18/04/99

07/08/2008

RPI 1957

Concessão da patente

#16.1

05/29/1990

RPI 1020

Notificação para pagamento de retribuição

#13.1

03/01/1990

RPI 1007

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