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Official data from INPI

LUBRIFICADOR DE CABO DE AÇO DE DESCIDA SUBMARINO E PROCESSO PARA INSERIR EQUIPAMENTO BAIXADO POR CABO NO INTERIOR DE UM POÇO PETROLÍFERO SUBMARINO.

Em AnáliseInvention Patent

Application data

Number

PI8505700

Type

Invention Patent

Filing

11/12/1985

Publication

08/12/1986

Progress at the INPI

  1. Filing11/12/85
  2. Publication08/12/86
  3. Examination02/10/87
  4. Allowance05/29/90
  5. Grant11/27/90
  6. Terminated09/19/95

The patent was granted on 11/27/1990 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

Talk to a specialist

Latest action published by the INPI: 12/05/1989. 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

I. H. (pessoa física)

GB

J. C. (pessoa física)

GB

Technical data

IPC Classification

Priority claims

GB

8428633 · 11/13/1984

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Conhecimento de parecer técnico

#7.1

12/05/1989

RPI 998

6.2

05/02/1989

RPI 967

Solicitação de exame técnico

#4.1

02/10/1987

RPI 851

Publicação do pedido de patente

#3.1

08/12/1986

RPI 825

Pedido de patente depositado

#2.1

01/21/1986

RPI 796

Anuidade - prazo legal encerrado

#18.2

09/19/1995

RPI 1294

Concessão da patente

#16.1

11/27/1990

RPI 1043

Notificação para pagamento de retribuição

#13.1

09/04/1990

RPI 1031

Deferimento

#9.1

05/29/1990

RPI 1020

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