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Official data from INPI

PROCESSO PARA PREPARAÇÃO DE PÉROLAS DE RESINA POROSA DE ADSORÇÃO E MÉTODO DE RECUPERAÇÃO DE UM MATERIAL ORGÂNICO

Em AnáliseInvention Patent

Application data

Number

PI9001230

Type

Invention Patent

Filing

03/12/1990

Publication

03/26/1991

Progress at the INPI

  1. Filing03/12/90
  2. Publication03/26/91
  3. Examination02/09/93
  4. Allowance
  5. Grant
  6. In force

Published on 03/26/1991, 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

The Dow Chemical Company

US

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Inventors

H. S. (pessoa física)

DE

M. K. (pessoa física)

CH

Y. G. (pessoa física)

Technical data

Priority claims

GB

89059349 · 03/15/1989

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Retificação

#15.3

11/28/1995

RPI 1304

Solicitação de exame técnico

#4.1

02/09/1993

RPI 1158

Publicação do pedido de patente

#3.1

03/26/1991

RPI 1060

Pedido de patente depositado

#2.1

07/24/1990

RPI 1025

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