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Official data from INPI

DISJUNTOR DE ALTA TENSÃO A GÁS DIELÉTRICO SOB PRESSÃO

Arquivada/ExtintaInvention Patent

Application data

Number

PI8904656

Type

Invention Patent

Filing

09/15/1989

Publication

04/24/1990

Progress at the INPI

  1. Filing09/15/89
  2. Publication04/24/90
  3. Examination06/30/92
  4. Allowance06/13/95
  5. Grant12/26/95
  6. Expired12/22/09

The letters patent expired on 12/22/2009: 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: 12/22/2009. 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 12 115 · 09/16/1988

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 15/09/2004

12/22/2009

RPI 2033

Concessão da patente

#16.1

12/26/1995

RPI 1308

Notificação para pagamento de retribuição

#13.1

10/24/1995

RPI 1299

Deferimento

#9.1

06/13/1995

RPI 1280

Exigência - art. 36 da LPI

#6.1

10/25/1994

RPI 1247

Solicitação de exame técnico

#4.1

06/30/1992

RPI 1126

Publicação do pedido de patente

#3.1

04/24/1990

RPI 1015

Pedido de patente depositado

#2.1

02/13/1990

RPI 1006

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