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Official data from INPI

Bocal de fundição

Em AnáliseInvention Patent

Application data

Number

PI8704095

Type

Invention Patent

Filing

08/10/1987

Publication

02/21/1989

Progress at the INPI

  1. Filing08/10/87
  2. Publication02/21/89
  3. Examination10/24/89
  4. Allowance10/11/94
  5. Grant06/27/95
  6. Expired07/29/08

The letters patent expired on 07/29/2008: 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: 10/24/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Toshiba Ceramics Co., Ltd

JP

See this company's full portfolio

Inventors

K. H. (pessoa física)

JP

S. S. (pessoa física)

JP

T. W. (pessoa física)

JP

T. K. (pessoa física)

JP

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

10/24/1989

RPI 992

Publicação do pedido de patente

#3.1

02/21/1989

RPI 957

Pedido de patente depositado

#2.1

10/06/1987

RPI 885

Carta-patente expirada

#21.1

Patente extinta em 10/08/2002

07/29/2008

RPI 1960

Concessão da patente

#16.1

06/27/1995

RPI 1282

Notificação para pagamento de retribuição

#13.1

02/21/1995

RPI 1264

Deferimento

#9.1

10/11/1994

RPI 1245

Exigência - art. 36 da LPI

#6.1

11/30/1993

RPI 1200

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