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Official data from INPI

FILTRO COM ELEMENTO DA FILTRAGEM ROTATIVO PARA FILTRAGEM DE AR POLUIDO

PublicadaInvention Patent

Application data

Number

PI8802933

Type

Invention Patent

Filing

06/13/1988

Publication

08/22/1989

Progress at the INPI

  1. Filing06/13/88
  2. Publication08/22/89
  3. Examination06/05/90
  4. Allowance12/05/95
  5. Grant02/04/97
  6. Expired09/02/08

The letters patent expired on 09/02/2008: 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: 08/22/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

J. K. (pessoa física)

SP, BR

Inventors

J. K. (pessoa física)

BR

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação antecipada

#3.2

08/22/1989

RPI 983

Pedido de patente depositado

#2.1

11/08/1988

RPI 942

Carta-patente expirada

#21.1

Patente extinta em 13/06/2003

09/02/2008

RPI 1965

Concessão da patente

#16.1

02/04/1997

RPI 1366

Notificação para pagamento de retribuição

#13.1

06/18/1996

RPI 1333

Deferimento

#9.1

12/05/1995

RPI 1305

Exigência - art. 36 da LPI

#6.1

05/02/1995

RPI 1274

Solicitação de exame técnico

#4.1

06/05/1990

RPI 1021

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