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Official data from INPI

VÁLVULA REGULADORA DE PRESSÃO PARA A VENTILAÇÃO DO CÁRTER DO BLOCO DE MOTOR DE COMBUSTÃO INTERNA

Arquivada/ExtintaInvention Patent

Application data

Number

PI9101352

Type

Invention Patent

Filing

04/01/1991

Publication

11/26/1991

Progress at the INPI

  1. Filing04/01/91
  2. Publication11/26/91
  3. Examination02/02/93
  4. Allowance10/11/94
  5. Grant06/27/95
  6. Expired06/22/10

The letters patent expired on 06/22/2010: 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: 06/22/2010. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Filterwerk Mann & Hummel GmbH

DE

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Inventors

H. M. (pessoa física)

DE

W. S. (pessoa física)

DE

Technical data

IPC Classification

Priority claims

DE

P 40 17 074.8 · 05/26/1990

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 01/04/2006

06/22/2010

RPI 2059

Concessão da patente

#16.1

06/27/1995

RPI 1282

Notificação para pagamento de retribuição

#13.1

02/21/1995

RPI 1264

Deferimento

#9.1

10/11/1994

RPI 1245

Solicitação de exame técnico

#4.1

02/02/1993

RPI 1157

Publicação do pedido de patente

#3.1

11/26/1991

RPI 1095

Pedido de patente depositado

#2.1

09/17/1991

RPI 1085

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