(11) 98705-3426
TrademarkIQ iconTrademarkIQ
Back to search
Official data from INPI

PROCESSO PARA A REFRIGERAÇÃO E DEPURAÇÃO DE GÁS DE GERADOR E GÁS DE ALTO FORNO E DISPOSITIVO PARA A EXECUÇÃO DESTE PROCESSO

Em AnáliseInvention Patent

Application data

Number

PI8603067

Type

Invention Patent

Filing

07/01/1986

Publication

03/17/1987

Progress at the INPI

  1. Filing07/01/86
  2. Publication03/17/87
  3. Examination06/06/89
  4. Allowance06/20/95
  5. Grant01/30/96
  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: 06/06/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Deutsche Voest-Alpine Industrieanlagenbau GmbH

DE

Voest-Alpine Industrieanlagenbau Gesellschaft M.b.H

AT

See this company's full portfolio

Inventors

B. V. (pessoa física)

DE

Technical data

IPC Classification

Priority claims

DE

P 35 24 011.3 · 07/02/1985

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

06/06/1989

RPI 972

Publicação do pedido de patente

#3.1

03/17/1987

RPI 856

Pedido de patente depositado

#2.1

02/24/1987

RPI 853

Carta-patente expirada

#21.1

Patente extinta em 01/07/2001

07/22/2008

RPI 1959

Concessão da patente

#16.1

01/30/1996

RPI 1313

Notificação para pagamento de retribuição

#13.1

10/31/1995

RPI 1300

Deferimento

#9.1

06/20/1995

RPI 1281

Exigência - art. 36 da LPI

#6.1

07/13/1993

RPI 1180

14.4

11/03/1992

RPI 1144

14.1

09/10/1991

RPI 1084

Patent monitoring

Track this patent in real time.

Receive alerts on INPI events, decisions, and expiry dates for your portfolio.