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Official data from INPI

DISPOSITIVO DE MEDIDA DE TENSÃO

Arquivada/ExtintaInvention Patent

Application data

Number

PI9006192

Type

Invention Patent

Filing

12/06/1990

Publication

09/24/1991

Progress at the INPI

  1. Filing12/06/90
  2. Publication09/24/91
  3. Examination05/18/93
  4. Allowance09/08/98
  5. Grant02/23/99
  6. Expired05/28/13

The letters patent expired on 05/28/2013: 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: 05/28/2013. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

GEC Alsthom SA

FR

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Inventors

J. M. (pessoa física)

FR

Technical data

IPC Classification

Priority claims

FR

89 16189 · 12/07/1989

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 06/12/2010

05/28/2013

RPI 2212

Concessão da patente

#16.1

02/23/1999

RPI 1468

Deferimento

#9.1

09/08/1998

RPI 1446

Exigência - art. 36 da LPI

#6.1

04/28/1998

RPI 1427

Solicitação de exame técnico

#4.1

05/18/1993

RPI 1172

Publicação do pedido de patente

#3.1

09/24/1991

RPI 1086

Pedido de patente depositado

#2.1

05/21/1991

RPI 1068

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