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Official data from INPI

DISPOSITIVO E PROCESSO DE COMPRESSÃO DE UM FLUÍDO

PublicadaInvention Patent

Application data

Number

PI8702625

Type

Invention Patent

Filing

05/22/1987

Publication

02/23/1988

Progress at the INPI

  1. Filing05/22/87
  2. Publication02/23/88
  3. Examination04/03/90
  4. Allowance02/25/92
  5. Grant10/27/92
  6. Expired07/29/08

The letters patent expired on 07/29/2008: 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: 02/23/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Institut Français du Petrole

FR

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Inventors

A. R. (pessoa física)

FR

Technical data

IPC Classification

Priority claims

FR

86/07.444 · 05/22/1986

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

02/23/1988

RPI 905

Pedido de patente depositado

#2.1

08/04/1987

RPI 876

Carta-patente expirada

#21.1

Patente extinta em 22/05/2002

07/29/2008

RPI 1960

Concessão da patente

#16.1

10/27/1992

RPI 1143

Notificação para pagamento de retribuição

#13.1

07/07/1992

RPI 1127

Deferimento

#9.1

02/25/1992

RPI 1108

Exigência - art. 36 da LPI

#6.1

07/02/1991

RPI 1074

Exigência - art. 36 da LPI

#6.1

01/22/1991

RPI 1051

Solicitação de exame técnico

#4.1

04/03/1990

RPI 1012

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