Official data from INPI

SISTEMA DE TRANSMISSÃO DE INFORMAÇÃO DE INICIALIZAÇÃO, ENTRE INSTALAÇÕES FIXASE TRENS.

Arquivada/ExtintaInvention Patent

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Application data

Number

PI8905834

Type

Invention Patent

Filing

11/20/1989

Publication

06/12/1990

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Progress at the INPI

Filing11/20/89
Publication06/12/90
Examination06/09/92
Allowance07/20/93
Grant03/29/94
Expired12/29/09

The letters patent expired on 12/29/2009: 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: 12/29/2009. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

GEC ALSTHOM SA..

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Inventors

P. M. (pessoa física)

Technical data

IPC Classification

B61L 3/12

Priority claims

88 15 006 · 11/18/1988

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 20/11/2004

12/29/2009

RPI 2034

Concessão da patente

#16.1

03/29/1994

RPI 1217

Deferimento

#9.1

07/20/1993

RPI 1181

Solicitação de exame técnico

#4.1

06/09/1992

RPI 1123

Publicação do pedido de patente

#3.1

06/12/1990

RPI 1022

Pedido de patente depositado

#2.1

03/06/1990

RPI 1008

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