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Official data from INPI

FORNO GERADOR DE MISTURA GASOSA PARA SIMULAR CONDIÇÕES INTERNAS DE ALTO-FORNO

Em AnáliseInvention Patent

Application data

Number

PI8603573

Type

Invention Patent

Filing

07/29/1986

Publication

03/15/1988

Progress at the INPI

  1. Filing07/29/86
  2. Publication03/15/88
  3. Examination04/25/89
  4. Allowance08/07/90
  5. Grant02/26/91
  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: 04/25/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

C. P. (pessoa física)

SP, BR

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Inventors

S. C. (pessoa física)

Technical data

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

04/25/1989

RPI 966

Publicação do pedido de patente

#3.1

03/15/1988

RPI 908

Pedido de patente depositado

#2.1

03/10/1987

RPI 855

Carta-patente expirada

#21.1

Patente extinta em 29/07/2001

07/22/2008

RPI 1959

20.7

10/18/1994

RPI 1246

Concessão da patente

#16.1

02/26/1991

RPI 1056

Notificação para pagamento de retribuição

#13.1

11/20/1990

RPI 1042

Deferimento

#9.1

08/07/1990

RPI 1027

Exigência - art. 36 da LPI

#6.1

03/01/1990

RPI 1007

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