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Official data from INPI

SISTEMA DE DESPOEIRAMENTO DE BRITADORES

Em AnáliseInvention Patent

Application data

Number

PI9004145

Type

Invention Patent

Filing

08/22/1990

Publication

03/03/1992

Progress at the INPI

  1. Filing08/22/90
  2. Publication03/03/92
  3. Examination03/23/93
  4. Allowance03/15/94
  5. Grant11/29/94
  6. Terminated04/09/96

The patent was granted on 11/29/1994 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

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Latest action published by the INPI: 04/09/1996. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Usinas Siderúrgicas de Minas Gerais S/A - Usiminas

MG, BR

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Inventors

A. B. (pessoa física)

BR

L. A. (pessoa física)

BR

O. F. (pessoa física)

BR

Technical data

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

04/09/1996

RPI 1323

22.2

04/09/1996

RPI 1323

Concessão da patente

#16.1

11/29/1994

RPI 1252

Notificação para pagamento de retribuição

#13.1

06/28/1994

RPI 1230

Deferimento

#9.1

03/15/1994

RPI 1215

Solicitação de exame técnico

#4.1

03/23/1993

RPI 1164

Publicação do pedido de patente

#3.1

03/03/1992

RPI 1109

Pedido de patente depositado

#2.1

02/26/1991

RPI 1056

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