(11) 98705-3426
TrademarkIQ iconTrademarkIQ
Back to search
Official data from INPI

VALVULA DE ESCAPE DE FLUIDO

Em AnáliseInvention Patent

Application data

Number

PI8300646

Type

Invention Patent

Filing

02/16/1982

Publication

11/08/1983

Progress at the INPI

  1. Filing02/16/82
  2. Publication11/08/83
  3. Examination07/16/85
  4. Allowance04/22/86
  5. Grant12/30/86
  6. Terminated10/10/89

The patent was granted on 12/30/1986 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

D. E. (pessoa física)

J. D. (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

12/30/1986

RPI 845

Notificação para pagamento de retribuição

#13.1

08/26/1986

RPI 827

Deferimento

#9.1

04/22/1986

RPI 809

Republicação - classificação IPC

#15.11

04/01/1986

RPI 806

Solicitação de exame técnico

#4.1

07/16/1985

RPI 769

Publicação do pedido de patente

#3.1

11/08/1983

RPI 681

Pedido de patente depositado

#2.1

03/29/1983

RPI 649

Patent monitoring

Track this patent in real time.

Receive alerts on INPI events, decisions, and expiry dates for your portfolio.