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Official data from INPI

DISPOSITIVO PARA COMANDAR,MEDIANTE VEDACAO,UM FLUIDO SOB PRESSAO

Em AnáliseInvention Patent

Application data

Number

PI7808541

Type

Invention Patent

Filing

12/28/1977

Publication

-

Progress at the INPI

  1. Filing12/28/77
  2. Publication
  3. Examination10/13/81
  4. Allowance08/10/82
  5. Grant02/22/83
  6. Terminated06/14/88

The patent was granted on 02/22/1983 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: 06/14/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

O. E. (pessoa física)

Inventors

P. P. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

06/14/1988

RPI 921

Concessão da patente

#16.1

02/22/1983

RPI 644

Deferimento

#9.1

08/10/1982

RPI 616

Solicitação de exame técnico

#4.1

10/13/1981

RPI 573

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