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Official data from INPI

FILTRO DE AR

Arquivada/ExtintaInvention Patent

Application data

Number

PI9005213

Type

Invention Patent

Filing

10/11/1990

Publication

09/17/1991

Progress at the INPI

  1. Filing10/11/90
  2. Publication09/17/91
  3. Examination12/14/93
  4. Allowance03/07/95
  5. Grant11/28/95
  6. Expired06/01/10

The letters patent expired on 06/01/2010: 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: 06/01/2010. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Filterwerk Mann & Hummel GmbH

DE

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Inventors

B. S. (pessoa física)

DE

G. H. (pessoa física)

DE

H. E. (pessoa física)

DE

W. B. (pessoa física)

DE

Technical data

IPC Classification

Priority claims

DE

P 3934433.9-13 · 10/14/1989

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 11/10/2005

06/01/2010

RPI 2056

Concessão da patente

#16.1

11/28/1995

RPI 1304

Notificação para pagamento de retribuição

#13.1

08/08/1995

RPI 1288

Deferimento

#9.1

03/07/1995

RPI 1266

15.17

05/17/1994

RPI 1224

15.5

03/22/1994

RPI 1216

Solicitação de exame técnico

#4.1

12/14/1993

RPI 1202

Publicação do pedido de patente

#3.1

09/17/1991

RPI 1085

Pedido de patente depositado

#2.1

04/16/1991

RPI 1063

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