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Official data from INPI

PROCESSO AMBIENTALMENTE SEGURO PARA A REMOÇÃO E DISPOSIÇÃO DE POLÍMEROS, SOLÚVEIS EM ÁGUA, RESIDUAIS A PARTIR DE CORRENTES DE DESPEJO E PROCESSO DE PRÉ-TRATAMENTO DE ADSORVENTE

Em AnáliseInvention Patent

Application data

Number

PI9003193

Type

Invention Patent

Filing

07/05/1990

Publication

08/27/1991

Progress at the INPI

  1. Filing07/05/90
  2. Publication08/27/91
  3. Examination03/23/93
  4. Allowance
  5. Grant
  6. In force

Published on 08/27/1991, 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

Union Carbide Chemicals and Plastics Company Inc.

US

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Inventors

E. G. (pessoa física)

K. A. (pessoa física)

IT

Technical data

IPC Classification

Priority claims

US

375.488 · 07/05/1989

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Retificação

#15.3

11/28/1995

RPI 1304

Solicitação de exame técnico

#4.1

03/23/1993

RPI 1164

Publicação do pedido de patente

#3.1

08/27/1991

RPI 1082

Pedido de patente depositado

#2.1

01/02/1991

RPI 1048

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