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Official data from INPI

Dispositivo de regulagem e de amortecimento das flutuacões de composicão de um escoamento polifásico e sistema de bombeamento de um efluente polifásico

Arquivada/ExtintaInvention PatentPCT · FR1990000085

Application data

Number

PI9004928

Type

Invention Patent

Filing

02/02/1990

Publication

08/06/1991

PCT

FR1990000085

Progress at the INPI

  1. Filing02/02/90
  2. Publication08/06/91
  3. Examination03/16/93
  4. Allowance06/04/96
  5. Grant04/29/97
  6. Expired06/01/10

The letters patent expired on 06/01/2010: 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: 06/01/2010. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Institut Français du Petrole

FR

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Inventors

D. G. (pessoa física)

FR

M. A. (pessoa física)

FR

M. C. (pessoa física)

FR

Technical data

IPC Classification

Priority claims

FR

89/01332 · 02/02/1989

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 02/02/2005

06/01/2010

RPI 2056

Concessão da patente

#16.1

04/29/1997

RPI 1378

Deferimento

#9.1

06/04/1996

RPI 1331

Conhecimento de parecer técnico

#7.1

08/29/1995

RPI 1291

Solicitação de exame técnico

#4.1

03/16/1993

RPI 1163

Notificação de entrada na fase nacional - PCT

#1.3

08/06/1991

RPI 1079

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