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Official data from INPI

CHAPAS DE LIGA DE ALUMÍNIO CONTENDO MAGNÉSIO UTILIZÁVEIS PARA PRODUÇÃO POR FORJAMENTO-ESTIRAMENTO DE CORPOS DE CAIXA E PROCESSO DE OBTENÇÃO DAS DITAS CHAPAS

Em AnáliseInvention Patent
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Application data

Number

PI8803074

Type

Invention Patent

Filing

06/23/1988

Publication

01/10/1989
View on INPI

Progress at the INPI

  1. Filing06/23/88
  2. Publication01/10/89
  3. Examination10/17/89
  4. Allowance09/05/95
  5. Grant04/30/96
  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.

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Latest action published by the INPI: 10/17/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

C. P. (pessoa física)

FR

P. R. (pessoa física)

FR

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Inventors

D. T. (pessoa física)

FR

Technical data

IPC Classification

B21D 51/26C22C 21/08C22F 1/047

Priority claims

FR

87 09271 · 06/24/1987

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

10/17/1989

RPI 991

Publicação do pedido de patente

#3.1

01/10/1989

RPI 951

Pedido de patente depositado

#2.1

11/16/1988

RPI 943

Carta-patente expirada

#21.1

Patente extinta em 23/06/2003

09/02/2008

RPI 1965

Concessão da patente

#16.1

04/30/1996

RPI 1326

Deferimento

#9.1

09/05/1995

RPI 1292

14.11

05/04/1993

RPI 1170

14.4

03/23/1993

RPI 1164

14.4

03/16/1993

RPI 1163

14.7

03/16/1993

RPI 1163

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