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Official data from INPI

SISTEMA DE SELAGEM DE PERNA DE CICLONE

Arquivada/ExtintaInvention Patent

Application data

Number

PI9600002

Type

Invention Patent

Filing

01/02/1996

Publication

01/21/1998

Progress at the INPI

  1. Filing01/02/96
  2. Publication01/21/98
  3. Examination
  4. Allowance05/16/00
  5. Grant10/03/00
  6. Expired01/05/16

The letters patent expired on 01/05/2016: 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: 01/05/2016. 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

E. G. (pessoa física)

BR

J. F. (pessoa física)

BR

V. V. (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 02/01/2016

01/05/2016

RPI 2348

Concessão da patente

#16.1

10/03/2000

RPI 1552

Deferimento

#9.1

05/16/2000

RPI 1532

Publicação do pedido de patente

#3.1

01/21/1998

RPI 1413

Pedido de patente depositado

#2.1

01/30/1996

RPI 1313

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