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Official data from INPI

PROCESSO E DISPOSITIVO PARA O PREPARO DE LODOS DE HIDRÓXIDO

Em AnáliseInvention PatentPCT · EP1988000799
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Application data

Number

PI8807193

Type

Invention Patent

Filing

09/02/1988

Publication

10/17/1989

PCT

EP1988000799
View on INPI

Progress at the INPI

  1. Filing09/02/88
  2. Publication10/17/89
  3. Examination10/16/90
  4. Allowance
  5. Grant
  6. In force

Published on 10/17/1989, 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: 10/17/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

G. M. (pessoa física)

DE

Inventors

R. R. (pessoa física)

Technical data

IPC Classification

C02F 9/00C22B 7/00

Priority claims

DE

P3729913.1 · 09/07/1987

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Notificação de entrada na fase nacional - PCT

#1.3

10/17/1989

RPI 991

Retificação

#15.3

04/20/1993

RPI 1168

Solicitação de exame técnico

#4.1

10/16/1990

RPI 1037

Solicitação de exame não realizada

#4.2

06/26/1990

RPI 1024

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