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Official data from INPI

MEMBRANAS PARA ELETROLISE E PROCESSO PARA SUA PREPARACAO

Em AnáliseInvention Patent

Application data

Number

PI7901549

Type

Invention Patent

Filing

12/13/1978

Publication

-

Progress at the INPI

  1. Filing12/13/78
  2. Publication
  3. Examination11/17/81
  4. Allowance07/12/83
  5. Grant12/27/83
  6. Terminated05/17/88

The patent was granted on 12/27/1983 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

Talk to a specialist

Latest action published by the INPI: 05/17/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

R. I. (pessoa física)

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Inventors

B. J. (pessoa física)

B. J. (pessoa física)

Q. J. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

05/17/1988

RPI 917

Pedido de licença compulsória

#20.1

07/10/1984

RPI 716

Concessão da patente

#16.1

12/27/1983

RPI 688

Notificação para pagamento de retribuição

#13.1

11/08/1983

RPI 681

Deferimento

#9.1

07/12/1983

RPI 664

Exigência - art. 36 da LPI

#6.1

09/28/1982

RPI 623

Solicitação de exame técnico

#4.1

11/17/1981

RPI 578

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