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Official data from INPI

PROCESSO DE PREPARAÇÃO DE SÍLICA PRECIPITADA DE POROSIDADE CONTROLADA.

Arquivada/ExtintaInvention Patent

Application data

Number

PI9003128

Type

Invention Patent

Filing

07/03/1990

Publication

08/27/1991

Progress at the INPI

  1. Filing07/03/90
  2. Publication08/27/91
  3. Examination11/26/91
  4. Allowance11/10/98
  5. Grant04/27/99
  6. Expired01/22/13

The letters patent expired on 01/22/2013: 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: 01/22/2013. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

R. C. (pessoa física)

FR

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Inventors

J. P. (pessoa física)

FR

Technical data

IPC Classification

Priority claims

FR

89 08874 · 07/03/1989

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 03/07/2010

01/22/2013

RPI 2194

Concessão da patente

#16.1

04/27/1999

RPI 1477

Deferimento

#9.1

11/10/1998

RPI 1453

Exigência - art. 36 da LPI

#6.1

06/02/1998

RPI 1432

Solicitação de exame técnico

#4.1

11/26/1991

RPI 1095

Publicação do pedido de patente

#3.1

08/27/1991

RPI 1082

Pedido de patente depositado

#2.1

12/26/1990

RPI 1047

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