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Official data from INPI

PROCESSO PARA A OBTENÇÃO DE SILICATOS DE METAIS ALCALINOS

Em AnáliseInvention PatentPCT · EP1990001947

Application data

Number

PI9007867

Type

Invention Patent

Filing

11/14/1990

Publication

08/25/1992

PCT

EP1990001947

Progress at the INPI

  1. Filing11/14/90
  2. Publication08/25/92
  3. Examination01/04/94
  4. Allowance
  5. Grant
  6. In force

Published on 08/25/1992, 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: 11/28/1995. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

H. A. (pessoa física)

DE

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Inventors

D. D. (pessoa física)

DE

D. H. (pessoa física)

DE

D. C. (pessoa física)

DE

D. N. (pessoa física)

DE

J. F. (pessoa física)

DE

Technical data

IPC Classification

Priority claims

DE

P 39 38 729.1 · 11/23/1989

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Retificação

#15.3

11/28/1995

RPI 1304

Solicitação de exame técnico

#4.1

01/04/1994

RPI 1205

Notificação de entrada na fase nacional - PCT

#1.3

08/25/1992

RPI 1134

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