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Official data from INPI

SUPORTE EM FERRO FUNDIDO PARA UTILIZAÇÀO EM RODEIO DE ALTO FORNO E FORMA REFRATÁRIA COM MOLDES EM BAIXO RELEVO PARA MOLDAGEM DE FERRO GUSA

Prazo de SigiloInvention Patent

Application data

Number

PI8805480

Type

Invention Patent

Filing

10/17/1988

Publication

03/14/1989

Progress at the INPI

  1. Filing10/17/88
  2. Publication03/14/89
  3. Examination01/02/90
  4. Allowance06/29/93
  5. Grant11/30/93
  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

S. L. (pessoa física)

MG, BR

Inventors

S. L. (pessoa física)

BR

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Pedido de patente depositado

#2.1

03/14/1989

RPI 960

Publicação antecipada

#3.2

03/14/1989

RPI 960

Carta-patente expirada

#21.1

Patente extinta em 17/10/2003

09/02/2008

RPI 1965

Concessão da patente

#16.1

11/30/1993

RPI 1200

Deferimento

#9.1

06/29/1993

RPI 1178

Exigência - art. 36 da LPI

#6.1

11/17/1992

RPI 1146

Solicitação de exame técnico

#4.1

01/02/1990

RPI 1000

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