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Official data from INPI

PROCESSO E EQUIPAMENTO PARA CLASSIFICAÇÃO DE MINÉRIOS E ASSEMELHADOS

Em AnáliseInvention Patent

Application data

Number

PI8803479

Type

Invention Patent

Filing

07/11/1988

Publication

10/18/1988

Progress at the INPI

  1. Filing07/11/88
  2. Publication10/18/88
  3. Examination03/14/89
  4. Allowance08/03/93
  5. Grant05/31/94
  6. Expired09/02/08

The letters patent expired on 09/02/2008: 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: 03/14/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

T. K. (pessoa física)

CA

Inventors

T. K. (pessoa física)

CA

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

03/14/1989

RPI 960

Publicação antecipada

#3.2

10/18/1988

RPI 939

Pedido de patente depositado

#2.1

10/11/1988

RPI 938

Carta-patente expirada

#21.1

Patente extinta em 11/07/2003

09/02/2008

RPI 1965

Concessão da patente

#16.1

05/31/1994

RPI 1226

Notificação para pagamento de retribuição

#13.1

01/18/1994

RPI 1207

Deferimento

#9.1

08/03/1993

RPI 1183

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