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Official data from INPI

PROCESSO PARA A PRODUÇÃO DE ÉSTER DE ÁCIDO CARBOXÍLICO A PARTIR DE UM ÁCIDO CARBOXÍLICO C2 A C12 OU DE UM ANIDRIDO DO MESMO E CATALISADOR PARA USAR NESSE PROCESSO

Em AnáliseInvention Patent

Application data

Number

PI8906331

Type

Invention Patent

Filing

12/07/1989

Publication

08/21/1990

Progress at the INPI

  1. Filing12/07/89
  2. Publication08/21/90
  3. Examination10/06/92
  4. Allowance
  5. Grant
  6. In force

Published on 08/21/1990, 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: 08/23/1994. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

BP Chemicals Limited

GB

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Inventors

G. P. (pessoa física)

K. M. (pessoa física)

GB

P. P. (pessoa física)

Technical data

Priority claims

GB

8828616.6 · 12/07/1988

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Retificação

#15.3

08/23/1994

RPI 1238

Solicitação de exame técnico

#4.1

10/06/1992

RPI 1140

Publicação do pedido de patente

#3.1

08/21/1990

RPI 1029

Pedido de patente depositado

#2.1

05/08/1990

RPI 1017

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