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Official data from INPI

PROCESSO PARA A DECOMPOSIÇÃO DE ACRILAMIDA, PROCESSO PARA PRODUÇÃO DA ENZIMA AMIDASE, PROCESSO PARA PRODUÇÀO DE ÁCIDO ACRÍLICO OU SEU SAL OU ÉSTER, E PROCESSO PARA O TRATAMENTO DE POLÍMEROS CATIÔNICOS DE POLIACRILAMIDA

PublicadaInvention Patent

Application data

Number

PI8706816

Type

Invention Patent

Filing

12/15/1987

Publication

07/19/1988

Progress at the INPI

  1. Filing12/15/87
  2. Publication07/19/88
  3. Abandoned10/16/90
  4. Allowance
  5. Grant
  6. In force

The application was abandoned: the INPI technical office action was not answered in time (art. 36 of the Brazilian IP Act). The technology is in the public domain in Brazil.

Talk to a specialist

Latest action published by the INPI: 07/19/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Imperial Chemical Industries Plc.

GB

Zeneca Limited

GB

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Inventors

D. B. (pessoa física)

GB

M. C. (pessoa física)

GB

Technical data

IPC Classification

Priority claims

GB

8630029 · 12/16/1986

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

07/19/1988

RPI 926

Pedido de patente depositado

#2.1

03/29/1988

RPI 910

Arquivamento - Art. 36 §1° da LPI

#11.2

08/06/1996

RPI 1340

6.5

10/24/1995

RPI 1299

14.1

07/04/1995

RPI 1283

Exigência - art. 36 da LPI

#6.1

02/07/1995

RPI 1262

Solicitação de exame técnico

#4.1

10/16/1990

RPI 1037

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