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Official data from INPI

PROCESSO E INSTALACAO DE RESFRIAMENTO DE UM FLUIDO,SOBRETUDO DE LIQUEFACAO DE GAS NATURAL

ConcedidaInvention Patent

Application data

Number

PI8400537

Type

Invention Patent

Filing

02/08/1983

Publication

09/11/1984

Progress at the INPI

  1. Filing02/08/83
  2. Publication09/11/84
  3. Examination07/29/86
  4. Allowance09/08/87
  5. Grant06/28/88
  6. Terminated06/06/95

The patent was granted on 06/28/1988 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

Talk to a specialist

Latest action published by the INPI: 06/28/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

AIR LIQUIDE [FR]

Inventors

G. P. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

06/28/1988

RPI 923

Notificação para pagamento de retribuição

#13.1

01/26/1988

RPI 901

Deferimento

#9.1

09/08/1987

RPI 881

Exigência - art. 36 da LPI

#6.1

03/04/1987

RPI 854

Solicitação de exame técnico

#4.1

07/29/1986

RPI 823

Publicação do pedido de patente

#3.1

09/11/1984

RPI 725

Pedido de patente depositado

#2.1

04/24/1984

RPI 705

Anuidade - prazo legal encerrado

#18.2

06/06/1995

RPI 1279

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