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Official data from INPI

ARMAÇÃO ESTRUTURAL PARA ELETROLISADOR DO TIPO FILTRO-PRENSA.

Arquivada/ExtintaInvention Patent

Application data

Number

PI9003960

Type

Invention Patent

Filing

08/10/1990

Publication

09/03/1991

Progress at the INPI

  1. Filing08/10/90
  2. Publication09/03/91
  3. Examination11/03/93
  4. Allowance09/29/98
  5. Grant02/23/99
  6. Expired01/29/13

The letters patent expired on 01/29/2013: 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: 01/29/2013. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Solvay & Cie

BE

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Inventors

E. C. (pessoa física)

BE

E. P. (pessoa física)

BE

Technical data

IPC Classification

Priority claims

BE

08900867 · 08/11/1989

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 10/08/2010

01/29/2013

RPI 2195

Concessão da patente

#16.1

02/23/1999

RPI 1468

Deferimento

#9.1

09/29/1998

RPI 1449

Exigência - art. 36 da LPI

#6.1

05/05/1998

RPI 1428

Solicitação de exame técnico

#4.1

11/03/1993

RPI 1196

Publicação do pedido de patente

#3.1

09/03/1991

RPI 1083

Pedido de patente depositado

#2.1

02/19/1991

RPI 1055

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