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Official data from INPI

MECANISMO PARA ACIONAR UMA VÁLVULA DE DOSAGEM

PublicadaInvention Patent

Application data

Number

PI8706349

Type

Invention Patent

Filing

11/19/1987

Publication

07/26/1988

Progress at the INPI

  1. Filing11/19/87
  2. Publication07/26/88
  3. Examination10/23/90
  4. Allowance06/04/91
  5. Grant03/31/92
  6. Expired07/29/08

The letters patent expired on 07/29/2008: 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: 07/26/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Paul Wurth S.A.

LU

See this company's full portfolio

Inventors

E. L. (pessoa física)

LU

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

07/26/1988

RPI 927

Pedido de patente depositado

#2.1

03/01/1988

RPI 906

Carta-patente expirada

#21.1

Patente extinta em 19/11/2002

07/29/2008

RPI 1960

Concessão da patente

#16.1

03/31/1992

RPI 1113

Notificação para pagamento de retribuição

#13.1

10/01/1991

RPI 1087

Deferimento

#9.1

06/04/1991

RPI 1070

Solicitação de exame técnico

#4.1

10/23/1990

RPI 1038

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