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Official data from INPI

DISPOSITIVO PARA EVITAR A TORÇÃO DE UMA LINHA FLEXÍVEL

Em AnáliseInvention Patent

Application data

Number

PI8606521

Type

Invention Patent

Filing

12/30/1986

Publication

10/20/1987

Progress at the INPI

  1. Filing12/30/86
  2. Publication10/20/87
  3. Examination11/07/89
  4. Allowance01/02/91
  5. Grant07/30/91
  6. Expired07/22/08

The letters patent expired on 07/22/2008: 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: 11/07/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Institut Français du Petrole

FR

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Inventors

J. F. (pessoa física)

FR

P. J. (pessoa física)

FR

Technical data

IPC Classification

Priority claims

FR

85/19.428 · 12/30/1985

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

11/07/1989

RPI 994

Publicação do pedido de patente

#3.1

10/20/1987

RPI 887

Pedido de patente depositado

#2.1

04/28/1987

RPI 862

Carta-patente expirada

#21.1

Patente extinta em 30/12/2001

07/22/2008

RPI 1959

Concessão da patente

#16.1

07/30/1991

RPI 1078

Notificação para pagamento de retribuição

#13.1

04/16/1991

RPI 1063

Deferimento

#9.1

01/02/1991

RPI 1048

Exigência - art. 36 da LPI

#6.1

06/19/1990

RPI 1023

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