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

APERFEIÇOAMENTO EM VÁLVULA DE FUNDO DE TANQUE

Em AnáliseInvention Patent

Application data

Number

PI8601210

Type

Invention Patent

Filing

03/07/1986

Publication

10/27/1987

Progress at the INPI

  1. Filing03/07/86
  2. Publication10/27/87
  3. Examination05/24/88
  4. Allowance05/02/89
  5. Grant01/09/90
  6. Expired07/22/08

The letters patent expired on 07/22/2008: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

Talk to a specialist

Latest action published by the INPI: 09/05/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Vlados Importadora, Comercio, Montagem e Industrial Ltda.

SP, BR

Inventors

A. F. (pessoa física)

BR

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Notificação para pagamento de retribuição

#13.1

09/05/1989

RPI 985

Deferimento

#9.1

05/02/1989

RPI 967

Solicitação de exame técnico

#4.1

05/24/1988

RPI 918

Publicação do pedido de patente

#3.1

10/27/1987

RPI 888

Pedido de patente depositado

#2.1

10/14/1986

RPI 834

Carta-patente expirada

#21.1

Patente extinta em 07/03/2001

07/22/2008

RPI 1959

Concessão da patente

#16.1

01/09/1990

RPI 1001

Patent monitoring

Track this patent in real time.

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