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Official data from INPI

PROCESSO PARA PREPARAÇÃO DE UMA MEMBRANA MICROPOROSA FLEXÍVEL E MEMBRANA MICROPOROSA

Arquivada/ExtintaInvention Patent

Application data

Number

PI9003510

Type

Invention Patent

Filing

07/19/1990

Publication

08/27/1991

Progress at the INPI

  1. Filing07/19/90
  2. Publication08/27/91
  3. Abandoned11/16/93
  4. Allowance
  5. Grant
  6. In force

The application was abandoned for failure to pay the annuities (art. 86 of the Brazilian IP Act). The technology is in the public domain in Brazil.

Talk to a specialist

Latest action published by the INPI: 04/18/2000. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Imperial Chemical Industries Plc.

GB

See this company's full portfolio

Inventors

D. L. (pessoa física)

H. C. (pessoa física)

GB

Technical data

IPC Classification

Priority claims

GB

8916441.2 · 07/19/1989

GB

9015132.5 · 07/10/1990

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Arquivamento por falta de pagamento

#8.6

Referente a 7ª, 8ª e 9ª anuidade

04/18/2000

RPI 1528

8.1

Referente a 7ª e 8ª anuidade

12/22/1998

RPI 1459

Solicitação de exame técnico

#4.1

11/16/1993

RPI 1198

Publicação do pedido de patente

#3.1

08/27/1991

RPI 1082

Pedido de patente depositado

#2.1

11/06/1990

RPI 1040

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