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

FORNO DE PRÉ-REDUÇÃO DE UMA USINA DE REDUÇÃO DE FUNDIÇÃO DE MINÉRIO DE FERRO

Arquivada/ExtintaInvention Patent

Application data

Number

PI9100773

Type

Invention Patent

Filing

02/26/1991

Publication

10/29/1991

Progress at the INPI

  1. Filing02/26/91
  2. Publication10/29/91
  3. Examination04/21/92
  4. Allowance07/28/98
  5. Grant12/29/98
  6. Expired05/28/13

The letters patent expired on 05/28/2013: 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: 05/28/2013. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

N. C. (pessoa física)

JP

See this company's full portfolio

Inventors

G. K. (pessoa física)

JP

M. M. (pessoa física)

JP

Technical data

IPC Classification

Priority claims

JP

044373/90 · 02/27/1990

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 26/02/2011

05/28/2013

RPI 2212

Concessão da patente

#16.1

12/29/1998

RPI 1460

Deferimento

#9.1

07/28/1998

RPI 1440

6.2

04/02/1996

RPI 1322

Solicitação de exame técnico

#4.1

04/21/1992

RPI 1116

Publicação do pedido de patente

#3.1

10/29/1991

RPI 1091

Pedido de patente depositado

#2.1

09/03/1991

RPI 1083

Patent monitoring

Track this patent in real time.

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