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Official data from INPI

VÁLVULA REGULADORA DE FLUXO.

ConcedidaInvention Patent

Application data

Number

PI8207476

Type

Invention Patent

Filing

12/23/1982

Publication

07/31/1984

Progress at the INPI

  1. Filing12/23/82
  2. Publication07/31/84
  3. Examination05/27/86
  4. Allowance08/02/88
  5. Grant05/30/89
  6. Expired07/01/08

The letters patent expired on 07/01/2008: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

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Latest action published by the INPI: 05/30/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

CBV Industria Mecanica S.A

RJ, BR

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Inventors

S. D. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

05/30/1989

RPI 971

Notificação para pagamento de retribuição

#13.1

11/29/1988

RPI 945

Deferimento

#9.1

08/02/1988

RPI 928

Exigência - art. 36 da LPI

#6.1

03/04/1987

RPI 854

Solicitação de exame técnico

#4.1

05/27/1986

RPI 814

Publicação do pedido de patente

#3.1

07/31/1984

RPI 719

Pedido de patente depositado

#2.1

02/16/1983

RPI 643

Carta-patente expirada

#21.1

Patente extinta em 23/12/97

07/01/2008

RPI 1956

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