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Official data from INPI

VÁLVULA REGULADORA DE PRESSÃO.

PublicadaInvention Patent

Application data

Number

PI8802206

Type

Invention Patent

Filing

05/06/1988

Publication

12/06/1988

Progress at the INPI

  1. Filing05/06/88
  2. Publication12/06/88
  3. Examination11/13/90
  4. Allowance03/16/93
  5. Grant10/26/93
  6. Expired09/02/08

The letters patent expired on 09/02/2008: 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: 12/06/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Wabco Westinghouse Fahrzeugbremsen GmbH

DE

Inventors

B. K. (pessoa física)

DE

H. K. (pessoa física)

DE

K. D. (pessoa física)

DE

Technical data

IPC Classification

Priority claims

DE

P3715148.7 · 05/07/1987

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

12/06/1988

RPI 946

Pedido de patente depositado

#2.1

09/27/1988

RPI 936

Carta-patente expirada

#21.1

Patente extinta em 06/05/2003

09/02/2008

RPI 1965

Concessão da patente

#16.1

10/26/1993

RPI 1195

Notificação para pagamento de retribuição

#13.1

07/06/1993

RPI 1179

Deferimento

#9.1

03/16/1993

RPI 1163

Exigência - art. 36 da LPI

#6.1

08/04/1992

RPI 1131

Solicitação de exame técnico

#4.1

11/13/1990

RPI 1041

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