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Official data from INPI

PROCESSO PARA PURIFICAÇÃO DE SILÍCIO

Em AnáliseInvention PatentPCT · SE1988000469
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Application data

Number

PI8807699

Type

Invention Patent

Filing

09/12/1988

Publication

07/24/1990

PCT

SE1988000469
View on INPI

Progress at the INPI

  1. Filing09/12/88
  2. Publication07/24/90
  3. Examination10/20/92
  4. Allowance
  5. Grant
  6. In force

Published on 07/24/1990, the application is awaiting technical examination at the INPI, which decides whether the invention meets the patentability requirements.

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Latest action published by the INPI: 11/01/1994. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Casco Nobel AB

SE

Inventors

G. A. (pessoa física)

I. J. (pessoa física)

O. A. (pessoa física)

R. M. (pessoa física)

Technical data

IPC Classification

C01B 33/037

Priority claims

SE

8703561-4 · 09/15/1987

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Retificação

#15.3

11/01/1994

RPI 1248

Solicitação de exame técnico

#4.1

10/20/1992

RPI 1142

4.2.1

10/20/1992

RPI 1142

Solicitação de exame não realizada

#4.2

01/15/1991

RPI 1050

Notificação de entrada na fase nacional - PCT

#1.3

07/24/1990

RPI 1025

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