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Official data from INPI

CONSTRUÇÃO DE FILTRO E PROCESSO PARA A FORMAÇÃO DE UMA CONSTRUÇÃO DE FILTRO

Arquivada/ExtintaInvention PatentPCT · FI1988000018

Application data

Number

PI8805852

Type

Invention Patent

Filing

02/08/1988

Publication

10/31/1989

PCT

FI1988000018

Progress at the INPI

  1. Filing02/08/88
  2. Publication10/31/89
  3. Examination11/13/90
  4. Allowance01/28/97
  5. Grant08/25/98
  6. Expired08/26/08

The letters patent expired on 08/26/2008: 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: 10/31/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Outokumpu Oy

FI

Valmet Paper Machinery Inc.

FI

See this company's full portfolio

Inventors

P. P. (pessoa física)

FI

R. H. (pessoa física)

FI

Technical data

IPC Classification

Priority claims

FI

870979 · 03/05/1987

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Notificação de entrada na fase nacional - PCT

#1.3

10/31/1989

RPI 993

Carta-patente expirada

#21.1

Patente extinta em 25/08/2008

08/26/2008

RPI 1964

Concessão da patente

#16.1

08/25/1998

RPI 1444

6.8

Referência: RPI 1409 de 23/12/97

03/10/1998

RPI 1420

6.7

12/23/1997

RPI 1409

Notificação para pagamento de retribuição

#13.1

05/06/1997

RPI 1379

Deferimento

#9.1

01/28/1997

RPI 1365

Conhecimento de parecer técnico

#7.1

12/12/1995

RPI 1306

14.1

05/26/1992

RPI 1121

Solicitação de exame técnico

#4.1

11/13/1990

RPI 1041

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