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Official data from INPI

MÉTODO E APARELHAGEM PARA LANÇAMENTO DE PIGS EM TUBULAÇÕES SUBMARINAS

Arquivada/ExtintaInvention Patent

Application data

Number

PI9601401

Type

Invention Patent

Filing

04/16/1996

Publication

01/13/1998

Progress at the INPI

  1. Filing04/16/96
  2. Publication01/13/98
  3. Examination
  4. Allowance10/07/03
  5. Grant11/25/03
  6. Expired05/10/16

The letters patent expired on 05/10/2016: 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: 05/10/2016. 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

P. L. (pessoa física)

BR

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 16/04/2016

05/10/2016

RPI 2366

Concessão da patente

#16.1

11/25/2003

RPI 1716

Deferimento

#9.1

10/07/2003

RPI 1709

Publicação do pedido de patente

#3.1

01/13/1998

RPI 1412

Pedido de patente depositado

#2.1

07/30/1996

RPI 1339

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