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Official data from INPI

PROCESSO PARA A COLOCAÇÃO DE PELO MENOS UMA TAMPA OU TELA ENTRE DOIS FLUIDOS NUMA FORMAÇÃO GEOLÓGICA

DeferidaInvention Patent

Application data

Number

PI8405856

Type

Invention Patent

Filing

11/16/1984

Publication

09/17/1985

Progress at the INPI

  1. Filing11/16/84
  2. Publication09/17/85
  3. Examination09/29/87
  4. Allowance10/31/89
  5. Grant05/29/90
  6. Terminated09/12/95

The patent was granted on 05/29/1990 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: 10/31/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Institut Français du Petrole

FR

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Inventors

J. C. (pessoa física)

FR

Technical data

IPC Classification

Priority claims

FR

83/18.354 · 11/18/1983

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Deferimento

#9.1

10/31/1989

RPI 993

Conhecimento de parecer técnico

#7.1

03/21/1989

RPI 961

6.2

07/12/1988

RPI 925

Solicitação de exame técnico

#4.1

09/29/1987

RPI 884

Publicação do pedido de patente

#3.1

09/17/1985

RPI 778

Pedido de patente depositado

#2.1

02/05/1985

RPI 746

Anuidade - prazo legal encerrado

#18.2

09/12/1995

RPI 1293

Concessão da patente

#16.1

05/29/1990

RPI 1020

Notificação para pagamento de retribuição

#13.1

03/06/1990

RPI 1008

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