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Official data from INPI

PRANCHA MOLDADA DE SILICATO DE CÁLCIO E PROCESSO PARA SUA PRODUÇÃO

Arquivada/ExtintaInvention Patent

Application data

Number

PI8807109

Type

Invention Patent

Filing

06/24/1988

Publication

10/31/1989

Progress at the INPI

  1. Filing06/24/88
  2. Publication10/31/89
  3. Examination03/06/90
  4. Allowance03/07/95
  5. Grant09/26/95
  6. Expired09/02/08

The letters patent expired on 09/02/2008: 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: 10/31/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Japan Insulation Co., Ltd

JP

K. S. (pessoa física)

JP

Inventors

M. K. (pessoa física)

JP

S. H. (pessoa física)

JP

T. I. (pessoa física)

JP

Technical data

IPC Classification

Priority claims

JP

160280/1987 · 06/26/1987

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Notificação de entrada na fase nacional - PCT

#1.3

10/31/1989

RPI 993

Carta-patente expirada

#21.1

Patente extinta em 24/06/2003

09/02/2008

RPI 1965

Alteração de nome deferida

#25.4

12/30/1997

RPI 1410

Concessão da patente

#16.1

09/26/1995

RPI 1295

Deferimento

#9.1

03/07/1995

RPI 1266

Exigência - art. 36 da LPI

#6.1

08/16/1994

RPI 1237

Solicitação de exame técnico

#4.1

03/06/1990

RPI 1008

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