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Official data from INPI

VÁLVULA DE DESCARGA BIDIRECIONAL

Arquivada/ExtintaInvention Patent

Application data

Number

PI9005253

Type

Invention Patent

Filing

10/18/1990

Publication

09/17/1991

Progress at the INPI

  1. Filing10/18/90
  2. Publication09/17/91
  3. Examination08/24/93
  4. Allowance05/31/94
  5. Grant04/25/95
  6. Expired06/01/10

The letters patent expired on 06/01/2010: 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: 06/01/2010. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Bendix Espana S/A

ES

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Inventors

E. G. (pessoa física)

ES

Technical data

IPC Classification

Priority claims

ES

89-03513 · 10/19/1989

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 18/10/2005

06/01/2010

RPI 2056

Concessão da patente

#16.1

04/25/1995

RPI 1273

Notificação para pagamento de retribuição

#13.1

10/04/1994

RPI 1244

Deferimento

#9.1

05/31/1994

RPI 1226

Solicitação de exame técnico

#4.1

08/24/1993

RPI 1186

Publicação do pedido de patente

#3.1

09/17/1991

RPI 1085

Pedido de patente depositado

#2.1

04/16/1991

RPI 1063

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