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

VÁLVULA DE COMANDO DE PRESSÃO DE FRENAGEM ATIVÁVEL

Em AnáliseInvention Patent

Application data

Number

PI8605846

Type

Invention Patent

Filing

11/28/1986

Publication

08/25/1987

Progress at the INPI

  1. Filing11/28/86
  2. Publication08/25/87
  3. Examination08/15/89
  4. Allowance10/23/90
  5. Grant07/30/91
  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: 08/15/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Wabco Westinghouse Fahrzeugbremsen GmbH

DE

Inventors

H. U. (pessoa física)

DE

Technical data

IPC Classification

Priority claims

DE

P 35 42 175.4 · 11/29/1985

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

08/15/1989

RPI 982

Publicação do pedido de patente

#3.1

08/25/1987

RPI 879

Pedido de patente depositado

#2.1

04/22/1987

RPI 861

Carta-patente expirada

#21.1

Patente extinta em 28/11/2001

07/22/2008

RPI 1959

Concessão da patente

#16.1

07/30/1991

RPI 1078

Notificação para pagamento de retribuição

#13.1

02/05/1991

RPI 1053

Deferimento

#9.1

10/23/1990

RPI 1038

Patent monitoring

Track this patent in real time.

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