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Official data from INPI

DISPOSITIVO PARA SEPARAR AS PARTÍCULAS INDESEJÁVEIS PRESENTES EM POLPA DE FIBRAS

Em AnáliseInvention Patent

Application data

Number

PI8603158

Type

Invention Patent

Filing

07/07/1986

Publication

02/24/1987

Progress at the INPI

  1. Filing07/07/86
  2. Publication02/24/87
  3. Examination04/28/87
  4. Allowance11/12/91
  5. Grant08/25/92
  6. Expired07/22/08

The letters patent expired on 07/22/2008: 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: 04/28/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

K. A. (pessoa física)

SE

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Inventors

F. J. (pessoa física)

SE

R. E. (pessoa física)

SE

Technical data

IPC Classification

Priority claims

SE

85.03372-8 · 07/08/1985

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

04/28/1987

RPI 862

Publicação do pedido de patente

#3.1

02/24/1987

RPI 853

Pedido de patente depositado

#2.1

12/30/1986

RPI 845

Carta-patente expirada

#21.1

Patente extinta em 07/07/2001

07/22/2008

RPI 1959

Concessão da patente

#16.1

08/25/1992

RPI 1134

Notificação para pagamento de retribuição

#13.1

03/31/1992

RPI 1113

Deferimento

#9.1

11/12/1991

RPI 1093

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