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Official data from INPI

ESTEIRA DE ADSORCAO E FILTRAGEM DE LIQUIDOS

ConcedidaInvention Patent

Application data

Number

PI7904228

Type

Invention Patent

Filing

07/07/1978

Publication

-

Progress at the INPI

  1. Filing07/07/78
  2. Publication
  3. Examination04/20/82
  4. Allowance10/11/83
  5. Grant03/27/84
  6. Terminated09/25/90

The patent was granted on 03/27/1984 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: 03/27/1984. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

K. M. (pessoa física)

Inventors

K. M. (pessoa física)

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

03/27/1984

RPI 701

Notificação para pagamento de retribuição

#13.1

01/24/1984

RPI 692

Deferimento

#9.1

10/11/1983

RPI 677

8.1

08/23/1983

RPI 670

Exigência - art. 36 da LPI

#6.1

11/30/1982

RPI 632

Solicitação de exame técnico

#4.1

04/20/1982

RPI 600

Anuidade - prazo legal encerrado

#18.2

09/25/1990

RPI 1034

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