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Official data from INPI

CONDENSADOR DE CONCRETO PARA TURBINA COM ESCAPAMENTO AXIAL E TURBINA MUNIDA DESSE CONDENSADOR

Arquivada/ExtintaInvention Patent

Application data

Number

PI9004224

Type

Invention Patent

Filing

08/27/1990

Publication

09/03/1991

Progress at the INPI

  1. Filing08/27/90
  2. Publication09/03/91
  3. Examination11/24/92
  4. Allowance01/18/94
  5. Grant08/30/94
  6. Expired06/01/10

The letters patent expired on 06/01/2010: 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: 06/01/2010. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

GEC Alsthom SA

FR

See this company's full portfolio

Inventors

J. G. (pessoa física)

FR

Technical data

IPC Classification

Priority claims

FR

89 11 301 · 08/28/1989

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 27/08/2005

06/01/2010

RPI 2056

Concessão da patente

#16.1

08/30/1994

RPI 1239

Notificação para pagamento de retribuição

#13.1

05/17/1994

RPI 1224

Deferimento

#9.1

01/18/1994

RPI 1207

Solicitação de exame técnico

#4.1

11/24/1992

RPI 1147

Publicação do pedido de patente

#3.1

09/03/1991

RPI 1083

Pedido de patente depositado

#2.1

03/05/1991

RPI 1057

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