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Official data from INPI

DISJUNTOR DE ALTA TENSÃO A GÁS DIELÉTRICO SOB PRESSÃO

Arquivada/ExtintaInvention Patent

Application data

Number

PI8905624

Type

Invention Patent

Filing

11/01/1989

Publication

06/05/1990

Progress at the INPI

  1. Filing11/01/89
  2. Publication06/05/90
  3. Examination04/07/92
  4. Allowance10/11/94
  5. Grant06/27/95
  6. 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.

Talk to a specialist

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

FR

See this company's full portfolio

Inventors

D. D. (pessoa física)

FR

E. T. (pessoa física)

FR

M. P. (pessoa física)

FR

Technical data

IPC Classification

Priority claims

FR

88 14274 · 11/02/1988

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 01/11/2004

12/29/2009

RPI 2034

Concessão da patente

#16.1

06/27/1995

RPI 1282

Notificação para pagamento de retribuição

#13.1

02/21/1995

RPI 1264

Deferimento

#9.1

10/11/1994

RPI 1245

Solicitação de exame técnico

#4.1

04/07/1992

RPI 1114

Publicação do pedido de patente

#3.1

06/05/1990

RPI 1021

Pedido de patente depositado

#2.1

03/06/1990

RPI 1008

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