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

PROCESSO PARA A PRODUÇÃO DE CHAPA REFRATÁRIA COM BASE DE ALUMINA-CARBONO PARA BOCAL MÓVEL

Em AnáliseInvention Patent

Application data

Number

PI8603912

Type

Invention Patent

Filing

08/15/1986

Publication

03/24/1987

Progress at the INPI

  1. Filing08/15/86
  2. Publication03/24/87
  3. Examination04/12/88
  4. Allowance03/03/92
  5. Grant10/27/92
  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: 04/12/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Kurosaki Refractories Co., Ltd.

JP

See this company's full portfolio

Inventors

H. S. (pessoa física)

JP

Technical data

IPC Classification

Priority claims

JP

60-185567 · 08/22/1985

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

04/12/1988

RPI 912

Publicação do pedido de patente

#3.1

03/24/1987

RPI 857

Pedido de patente depositado

#2.1

01/06/1987

RPI 846

Carta-patente expirada

#21.1

Patente extinta em 15/08/2001

07/22/2008

RPI 1959

Concessão da patente

#16.1

10/27/1992

RPI 1143

Notificação para pagamento de retribuição

#13.1

07/28/1992

RPI 1130

Deferimento

#9.1

03/03/1992

RPI 1109

Exigência - art. 36 da LPI

#6.1

05/14/1991

RPI 1067

Patent monitoring

Track this patent in real time.

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