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Official data from INPI

SISTEMA SUBMERSO PARA PRODUÇÃO E TRANSPORTE DE HIDROCARBONETOS

Em AnáliseInvention Patent

Application data

Number

PI8705289

Type

Invention Patent

Filing

10/06/1987

Publication

04/25/1989

Progress at the INPI

  1. Filing10/06/87
  2. Publication04/25/89
  3. Examination10/31/89
  4. Allowance07/23/91
  5. Grant05/26/92
  6. Expired07/29/08

The letters patent expired on 07/29/2008: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

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Latest action published by the INPI: 10/31/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Petróleo Brasileiro S/A - Petrobrás

RJ, BR

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Inventors

K. M. (pessoa física)

BR

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

10/31/1989

RPI 993

Publicação do pedido de patente

#3.1

04/25/1989

RPI 966

Pedido de patente depositado

#2.1

12/29/1987

RPI 897

Carta-patente expirada

#21.1

Patente extinta em 06/10/2002

07/29/2008

RPI 1960

Concessão da patente

#16.1

05/26/1992

RPI 1121

Notificação para pagamento de retribuição

#13.1

11/19/1991

RPI 1094

Deferimento

#9.1

07/23/1991

RPI 1077

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