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Official data from INPI

SISTEMA DE PRODUÇÃO DE PETRÓLEO E/OU GÁS SUBMARINO

PublicadaInvention Patent

Application data

Number

PI8705240

Type

Invention Patent

Filing

10/02/1987

Publication

05/24/1988

Progress at the INPI

  1. Filing10/02/87
  2. Publication05/24/88
  3. Examination11/13/90
  4. Allowance04/26/94
  5. Grant10/25/94
  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.

Talk to a specialist

Latest action published by the INPI: 05/24/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

The British Petroleum Company Plc

GB

See this company's full portfolio

Inventors

C. V. (pessoa física)

GB

T. C. (pessoa física)

GB

Technical data

IPC Classification

Priority claims

GB

8623900 · 10/04/1986

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

05/24/1988

RPI 918

Pedido de patente depositado

#2.1

12/29/1987

RPI 897

Carta-patente expirada

#21.1

Patente extinta em 02/10/2002

07/29/2008

RPI 1960

Concessão da patente

#16.1

10/25/1994

RPI 1247

Notificação para pagamento de retribuição

#13.1

08/23/1994

RPI 1238

Deferimento

#9.1

04/26/1994

RPI 1221

Exigência - art. 36 da LPI

#6.1

10/19/1993

RPI 1194

6.2

03/16/1993

RPI 1163

Pedido de certificado de adição de invenção

#5.1

03/19/1991

RPI 1059

Solicitação de exame técnico

#4.1

11/13/1990

RPI 1041

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