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Official data from INPI

VALVULA DE RECUPERACAO

Em AnáliseInvention Patent

Application data

Number

PI8300816

Type

Invention Patent

Filing

02/22/1982

Publication

11/16/1983

Progress at the INPI

  1. Filing02/22/82
  2. Publication11/16/83
  3. Examination07/16/85
  4. Allowance09/30/86
  5. Grant06/30/87
  6. Terminated10/10/89

The patent was granted on 06/30/1987 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: 10/10/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

CESSNA AIRCRAFT CO [US]

Inventors

S. J. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

10/10/1989

RPI 990

Concessão da patente

#16.1

06/30/1987

RPI 871

Notificação para pagamento de retribuição

#13.1

03/04/1987

RPI 854

Deferimento

#9.1

09/30/1986

RPI 832

Exigência - art. 36 da LPI

#6.1

02/18/1986

RPI 800

Solicitação de exame técnico

#4.1

07/16/1985

RPI 769

Publicação do pedido de patente

#3.1

11/16/1983

RPI 682

Pedido de patente depositado

#2.1

04/05/1983

RPI 650

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