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Official data from INPI

FILTRO DE FULIGEM PARA PURIFICAR GASES DE EXAUSTÃO DE MOTOR DE COMBUSTÃO INTERNA

Arquivada/ExtintaInvention Patent

Application data

Number

PI9001965

Type

Invention Patent

Filing

04/24/1990

Publication

07/30/1991

Progress at the INPI

  1. Filing04/24/90
  2. Publication07/30/91
  3. Examination09/22/92
  4. Allowance01/18/94
  5. Grant11/29/94
  6. Expired05/18/10

The letters patent expired on 05/18/2010: 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: 05/18/2010. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Filterwerk Mann & Hummel GmbH

DE

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Inventors

H. E. (pessoa física)

DE

Technical data

IPC Classification

Priority claims

DE

P 39 14 758.4 · 05/05/1989

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 24/04/2005

05/18/2010

RPI 2054

Concessão da patente

#16.1

11/29/1994

RPI 1252

Notificação para pagamento de retribuição

#13.1

05/17/1994

RPI 1224

Deferimento

#9.1

01/18/1994

RPI 1207

Solicitação de exame técnico

#4.1

09/22/1992

RPI 1138

Publicação do pedido de patente

#3.1

07/30/1991

RPI 1078

Pedido de patente depositado

#2.1

09/11/1990

RPI 1032

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