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Official data from INPI

PROCESSO PARA O TRATAMENTO DE GRÂNULOS

Em AnáliseInvention Patent

Application data

Number

PI8604489

Type

Invention Patent

Filing

09/19/1986

Publication

05/19/1987

Progress at the INPI

  1. Filing09/19/86
  2. Publication05/19/87
  3. Examination08/18/87
  4. Allowance04/20/93
  5. Grant08/31/93
  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: 08/18/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

T. C. (pessoa física)

JP

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Inventors

K. K. (pessoa física)

JP

Y. H. (pessoa física)

JP

Technical data

IPC Classification

Priority claims

JP

215.440/85 · 09/27/1985

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

08/18/1987

RPI 878

Publicação do pedido de patente

#3.1

05/19/1987

RPI 865

Pedido de patente depositado

#2.1

03/24/1987

RPI 857

Carta-patente expirada

#21.1

Patente extinta em 19/09/2001

07/22/2008

RPI 1959

22.2

Não conhecida a petição de extensão de prazo de validade da patente PI 8604489-3, RJ 020040004481 de 22/10/04, com base no disposto no PARECER MICT/CONJUR Nº 24/97

12/28/2004

RPI 1773

Concessão da patente

#16.1

08/31/1993

RPI 1187

Deferimento

#9.1

04/20/1993

RPI 1168

Exigência - art. 36 da LPI

#6.1

05/19/1992

RPI 1120

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