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Official data from INPI

PROCESSO PARA IMPEDIR A FORMAÇÃO DE INCRUSTAÇÃO DE POLÍMERO

Prazo de SigiloInvention Patent
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Application data

Number

PI8904171

Type

Invention Patent

Filing

08/18/1989

Publication

04/10/1990
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Progress at the INPI

  1. Filing08/18/89
  2. Publication04/10/90
  3. Abandoned02/13/91
  4. Allowance
  5. Grant
  6. In force

The application was abandoned: the INPI technical office action was not answered in time (art. 36 of the Brazilian IP Act). The technology is in the public domain in Brazil.

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Latest action published by the INPI: 11/07/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Shin-Etsu Chemical Co., Ltd.

JP

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Inventors

I. K. (pessoa física)

M. W. (pessoa física)

T. S. (pessoa física)

Technical data

IPC Classification

C08F 110/00C08F 2/08

Priority claims

JP

207185/1988 · 08/19/1988

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Pedido de patente depositado

#2.1

11/07/1989

RPI 994

Arquivamento - Art. 36 §1° da LPI

#11.2

12/17/1996

RPI 1359

Exigência - art. 36 da LPI

#6.1

03/26/1996

RPI 1321

Exigência - art. 36 da LPI

#6.1

07/18/1995

RPI 1285

Solicitação de exame técnico

#4.1

02/13/1991

RPI 1054

Publicação do pedido de patente

#3.1

04/10/1990

RPI 1013

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