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

PROCESSO PARA A PRODUÇÃO DE FERRO-GUSA OU FERRO ESPONJA

Arquivada/ExtintaInvention Patent

Application data

Number

PI9105177

Type

Invention Patent

Filing

11/28/1991

Publication

07/21/1992

Progress at the INPI

  1. Filing11/28/91
  2. Publication07/21/92
  3. Examination07/06/93
  4. Allowance12/01/98
  5. Grant06/29/99
  6. Expired06/11/13

The letters patent expired on 06/11/2013: 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: 06/11/2013. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Deutsche Voest-Alpine Industrieanlagenbau GmbH

DE

See this company's full portfolio

Inventors

D. K. (pessoa física)

AT

D. H. (pessoa física)

DE

Technical data

IPC Classification

Priority claims

DE

P 40 37 977.9 · 11/29/1990

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 28/11/2011

06/11/2013

RPI 2214

Concessão da patente

#16.1

06/29/1999

RPI 1486

Deferimento

#9.1

12/01/1998

RPI 1456

Exigência - art. 36 da LPI

#6.1

06/16/1998

RPI 1434

Solicitação de exame técnico

#4.1

07/06/1993

RPI 1179

Publicação do pedido de patente

#3.1

07/21/1992

RPI 1129

Pedido de patente depositado

#2.1

01/14/1992

RPI 1102

Patent monitoring

Track this patent in real time.

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