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Official data from INPI

PROCESSO PARA A PREPARAÇÃO DE PRODUTO DE BAIXA COR APHA E ALTA PUREZA

Em AnáliseInvention Patent

Application data

Number

PI9104057

Type

Invention Patent

Filing

09/23/1991

Publication

06/02/1992

Progress at the INPI

  1. Filing09/23/91
  2. Publication06/02/92
  3. Examination05/31/94
  4. Allowance
  5. Grant
  6. In force

Published on 06/02/1992, 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: 12/12/1995. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Atochem North America, Inc.

US

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Inventors

L. V. (pessoa física)

US

T. O. (pessoa física)

US

Technical data

Priority claims

US

07/587,198 · 09/24/1990

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Retificação

#15.3

12/12/1995

RPI 1306

Solicitação de exame técnico

#4.1

05/31/1994

RPI 1226

Publicação do pedido de patente

#3.1

06/02/1992

RPI 1122

Pedido de patente depositado

#2.1

10/29/1991

RPI 1091

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