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Official data from INPI

APARELHO DE TRATAMENTO DE POLPA E PROCESSO DE ENXAGUAR EM FLUXO INVERSO UMA PENEIRA NUM APARELHO DE TRATAMENTO DE POLPA

Prazo de SigiloInvention Patent

Application data

Number

PI8904117

Type

Invention Patent

Filing

08/16/1989

Publication

04/10/1990

Progress at the INPI

  1. Filing08/16/89
  2. Publication04/10/90
  3. Examination09/11/90
  4. Allowance11/15/94
  5. Grant06/27/95
  6. Expired12/22/09

The letters patent expired on 12/22/2009: 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: 10/24/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Kamyr AB

SE

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Inventors

F. J. (pessoa física)

SE

O. R. (pessoa física)

SE

Technical data

IPC Classification

Priority claims

US

233.366 · 08/18/1988

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Pedido de patente depositado

#2.1

10/24/1989

RPI 992

Carta-patente expirada

#21.1

Patente extinta em 16/08/2004

12/22/2009

RPI 2033

Concessão da patente

#16.1

06/27/1995

RPI 1282

Notificação para pagamento de retribuição

#13.1

03/21/1995

RPI 1268

Deferimento

#9.1

11/15/1994

RPI 1250

Solicitação de exame técnico

#4.1

09/11/1990

RPI 1032

Publicação do pedido de patente

#3.1

04/10/1990

RPI 1013

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