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Official data from INPI

APERFEICOAMENTOS EM FILTRO VALVULAR PARA ANESTESIA

Em AnáliseInvention Patent

Application data

Number

PI7608195

Type

Invention Patent

Filing

12/02/1976

Publication

-

Progress at the INPI

  1. Filing12/02/76
  2. Publication
  3. Examination
  4. Allowance
  5. Grant03/30/82
  6. Terminated10/23/84

The patent was granted on 03/30/1982 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: 10/23/1984. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

TAKAOKA K IND COM LTD

Inventors

T. K. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

10/23/1984

RPI 731

Pedido de licença voluntária

#17.1

05/11/1982

RPI 603

Concessão da patente

#16.1

03/30/1982

RPI 597

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