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Official data from INPI

DISPOSITIVO DE FILTRAGEM DE AR

Arquivada/ExtintaInvention PatentPCT · FR1988000433

Application data

Number

PI8807186

Type

Invention Patent

Filing

09/01/1988

Publication

03/01/1990

PCT

FR1988000433

Progress at the INPI

  1. Filing09/01/88
  2. Publication03/01/90
  3. Examination09/11/90
  4. Allowance12/20/94
  5. Grant07/25/95
  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: 09/02/2008. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

O. T. (pessoa física)

FR

Inventors

O. T. (pessoa física)

FR

Technical data

IPC Classification

Priority claims

FR

87/12206 · 09/02/1987

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 01/09/2003

09/02/2008

RPI 1965

Concessão da patente

#16.1

07/25/1995

RPI 1286

Notificação para pagamento de retribuição

#13.1

05/02/1995

RPI 1274

Deferimento

#9.1

12/20/1994

RPI 1255

Exigência - art. 36 da LPI

#6.1

08/16/1994

RPI 1237

Solicitação de exame técnico

#4.1

09/11/1990

RPI 1032

Notificação de entrada na fase nacional - PCT

#1.3

03/01/1990

RPI 1007

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