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

VÁLVULA DE CORREDIÇA DE CONDUTO DIRETO.

ConcedidaInvention Patent

Application data

Number

PI8402251

Type

Invention Patent

Filing

05/11/1984

Publication

12/18/1984

Progress at the INPI

  1. Filing05/11/84
  2. Publication12/18/84
  3. Examination01/27/87
  4. Allowance11/10/87
  5. Grant06/28/88
  6. Terminated10/16/90

The patent was granted on 06/28/1988 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: 06/28/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

W. K. (pessoa física)

Inventors

W. K. (pessoa física)

Technical data

IPC Classification

Priority claims

US

493.589 · 05/11/1983

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

06/28/1988

RPI 923

Notificação para pagamento de retribuição

#13.1

03/01/1988

RPI 906

Deferimento

#9.1

11/10/1987

RPI 890

Solicitação de exame técnico

#4.1

01/27/1987

RPI 849

Publicação do pedido de patente

#3.1

12/18/1984

RPI 739

Pedido de patente depositado

#2.1

07/24/1984

RPI 718

Anuidade - prazo legal encerrado

#18.2

10/16/1990

RPI 1037

Patent monitoring

Track this patent in real time.

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