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Official data from INPI

Válvula de retenção mecanicamente auxiliada.

Em AnáliseInvention Patent

Application data

Number

PI8008170

Type

Invention Patent

Filing

12/12/1980

Publication

-

Progress at the INPI

  1. Filing12/12/80
  2. Publication
  3. Examination08/02/83
  4. Allowance07/10/84
  5. Grant12/26/84
  6. Terminated06/21/88

The patent was granted on 12/26/1984 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: 06/21/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

W. K. (pessoa física)

Inventors

K. [. (pessoa física)

Technical data

IPC Classification

Priority claims

US

103.382 · 12/13/1979

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

06/21/1988

RPI 922

Concessão da patente

#16.1

12/26/1984

RPI 740

Notificação para pagamento de retribuição

#13.1

10/23/1984

RPI 731

Deferimento

#9.1

07/10/1984

RPI 716

Exigência - art. 36 da LPI

#6.1

01/24/1984

RPI 692

Solicitação de exame técnico

#4.1

08/02/1983

RPI 667

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