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Official data from INPI

VÁLVULA DE RETENÇÃO DE VÁCUO

Prazo de SigiloInvention Patent

Application data

Number

PI8903282

Type

Invention Patent

Filing

07/04/1989

Publication

01/08/1991

Progress at the INPI

  1. Filing07/04/89
  2. Publication01/08/91
  3. Examination05/07/91
  4. Allowance09/15/92
  5. Grant05/25/93
  6. Expired12/22/09

The letters patent expired on 12/22/2009: 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: 10/31/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Freios Varga S/A

SP, BR

TRW Automotive Ltda.

SP, BR

TRW Automotive South America S.A

SP, BR

See this company's full portfolio

Inventors

G. R. (pessoa física)

BR

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Pedido de patente depositado

#2.1

10/31/1989

RPI 993

Carta-patente expirada

#21.1

Patente extinta em 04/07/2004

12/22/2009

RPI 2033

Alteração de nome deferida

#25.4

Alterado de: TRW Automotive South América S/A

03/09/2004

RPI 1731

Transferência deferida

#25.1

Transferido de: Freios Varga S.A.

01/02/2001

RPI 1565

Concessão da patente

#16.1

05/25/1993

RPI 1173

Notificação para pagamento de retribuição

#13.1

02/02/1993

RPI 1157

Deferimento

#9.1

09/15/1992

RPI 1137

Solicitação de exame técnico

#4.1

05/07/1991

RPI 1066

Publicação do pedido de patente

#3.1

01/08/1991

RPI 1049

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