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Official data from INPI

COMPOSIÇÃO DE MATÉRIA, MÉTODO DE FORMAÇÃO DE UM ARTIGO A PARTIR DE UM COPOLICARBONATO HALOGENADO E MÉTODO DE PREPARAÇÃO DE COMPOSIÇÃO DE UM COPOLICARBONATO HALOGENADO

Em AnáliseInvention Patent

Application data

Number

PI9100544

Type

Invention Patent

Filing

02/05/1991

Publication

10/29/1991

Progress at the INPI

  1. Filing02/05/91
  2. Publication10/29/91
  3. Examination01/18/94
  4. Allowance
  5. Grant
  6. In force

Published on 10/29/1991, 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: 12/05/1995. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

The Dow Chemical Company

US

See this company's full portfolio

Inventors

M. M. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

07/477.287 · 02/08/1990

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Retificação

#15.3

12/05/1995

RPI 1305

Solicitação de exame técnico

#4.1

01/18/1994

RPI 1207

Publicação do pedido de patente

#3.1

10/29/1991

RPI 1091

Pedido de patente depositado

#2.1

08/20/1991

RPI 1081

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