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Official data from INPI

CONJUNTO COMPORTANDO UM TUBO PROLONGADOR E UM CONDUTO DE REVESTIMENTO INTERNO DESSE TUBO

Arquivada/ExtintaInvention PatentPCT · FR1990000586

Application data

Number

PI9006878

Type

Invention Patent

Filing

08/02/1990

Publication

08/27/1991

PCT

FR1990000586

Progress at the INPI

  1. Filing08/02/90
  2. Publication08/27/91
  3. Examination06/08/93
  4. Allowance05/03/94
  5. Grant12/27/94
  6. Expired06/15/10

The letters patent expired on 06/15/2010: 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: 06/15/2010. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Institut Français du Petrole

FR

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Inventors

J. G. (pessoa física)

FR

L. B. (pessoa física)

FR

Technical data

Priority claims

FR

89/10755 · 08/07/1989

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 02/08/2005

06/15/2010

RPI 2058

Concessão da patente

#16.1

12/27/1994

RPI 1256

Notificação para pagamento de retribuição

#13.1

08/30/1994

RPI 1239

Deferimento

#9.1

05/03/1994

RPI 1222

Solicitação de exame técnico

#4.1

06/08/1993

RPI 1175

Retificação da notificação da fase nacional - PCT

#1.3.1

03/10/1992

RPI 1110

Notificação de entrada na fase nacional - PCT

#1.3

08/27/1991

RPI 1082

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