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Official data from INPI

VÁLVULA SEM RETORNO PARA QUEIMADORES VIBRATÓRIOS

ConcedidaInvention Patent

Application data

Number

PI8403177

Type

Invention Patent

Filing

06/28/1984

Publication

02/04/1986

Progress at the INPI

  1. Filing06/28/84
  2. Publication02/04/86
  3. Examination03/01/88
  4. Allowance04/04/89
  5. Grant10/24/89
  6. Expired07/08/08

The letters patent expired on 07/08/2008: 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: 10/24/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Mareck B.V.

NL

Inventors

K. O. (pessoa física)

SE

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

10/24/1989

RPI 992

Notificação para pagamento de retribuição

#13.1

08/01/1989

RPI 980

Deferimento

#9.1

04/04/1989

RPI 963

Exigência - art. 36 da LPI

#6.1

09/27/1988

RPI 936

Solicitação de exame técnico

#4.1

03/01/1988

RPI 906

Publicação do pedido de patente

#3.1

02/04/1986

RPI 798

Pedido de patente depositado

#2.1

09/04/1984

RPI 724

Carta-patente expirada

#21.1

Patente extinta em 28/06/99

07/08/2008

RPI 1957

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