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Official data from INPI

VÁLVULA DE ALÍVIO PARA CIRCUITOS HIDRÁULICOS

Arquivada/ExtintaInvention Patent

Application data

Number

PI9003635

Type

Invention Patent

Filing

07/26/1990

Publication

08/27/1991

Progress at the INPI

  1. Filing07/26/90
  2. Publication08/27/91
  3. Examination08/31/93
  4. Allowance10/04/94
  5. Grant06/27/95
  6. Expired05/25/10

The letters patent expired on 05/25/2010: 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: 05/25/2010. 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

8902800 · 08/07/1989

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 26/07/2005

05/25/2010

RPI 2055

Concessão da patente

#16.1

06/27/1995

RPI 1282

Notificação para pagamento de retribuição

#13.1

02/07/1995

RPI 1262

Deferimento

#9.1

10/04/1994

RPI 1244

Solicitação de exame técnico

#4.1

08/31/1993

RPI 1187

Publicação do pedido de patente

#3.1

08/27/1991

RPI 1082

Pedido de patente depositado

#2.1

01/29/1991

RPI 1052

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