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Official data from INPI

ELEMENTO VEDADOR PARA VÁLVULA PNEUMÁTICA

DeferidaInvention Patent

Application data

Number

PI8604987

Type

Invention Patent

Filing

10/13/1986

Publication

05/31/1988

Progress at the INPI

  1. Filing10/13/86
  2. Publication05/31/88
  3. Examination09/27/88
  4. Allowance11/21/89
  5. Grant08/28/90
  6. Expired07/22/08

The letters patent expired on 07/22/2008: 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: 11/21/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Fábrica Nacional de Amortecedores Ltda

RS, BR

See this company's full portfolio

Inventors

D. L. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Deferimento

#9.1

11/21/1989

RPI 996

Solicitação de exame técnico

#4.1

09/27/1988

RPI 936

Publicação do pedido de patente

#3.1

05/31/1988

RPI 919

Pedido de patente depositado

#2.1

04/07/1987

RPI 859

Carta-patente expirada

#21.1

Patente extinta em 13/10/2001

07/22/2008

RPI 1959

Alteração de sede deferida

#25.7

Alterada a sede conforme pet.INPI/SP nº 020544 de 10/07/97

07/28/1998

RPI 1440

Concessão da patente

#16.1

08/28/1990

RPI 1030

Notificação para pagamento de retribuição

#13.1

03/27/1990

RPI 1011

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