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Official data from INPI

FILTRO DE AR E ARMAÇÃO PARA USO NO MESMO

PublicadaInvention Patent

Application data

Number

PI8707019

Type

Invention Patent

Filing

12/23/1987

Publication

08/09/1988

Progress at the INPI

  1. Filing12/23/87
  2. Publication08/09/88
  3. Examination05/01/90
  4. Allowance09/26/95
  5. Grant04/30/96
  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: 08/09/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Filtrete B.V

NL

Filtrete BV

NL

Inventors

F. S. (pessoa física)

NL

J. W. (pessoa física)

NL

J. V. (pessoa física)

NL

Technical data

IPC Classification

Priority claims

NL

8603306 · 12/24/1986

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

08/09/1988

RPI 929

Pedido de patente depositado

#2.1

03/29/1988

RPI 910

Carta-patente expirada

#21.1

Patente extinta em 23/12/2002

07/29/2008

RPI 1960

Concessão da patente

#16.1

04/30/1996

RPI 1326

Deferimento

#9.1

09/26/1995

RPI 1295

Exigência - art. 36 da LPI

#6.1

07/05/1994

RPI 1231

Solicitação de exame técnico

#4.1

05/01/1990

RPI 1016

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