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Official data from INPI

FILTRO DIGITAL AUTO-ADAPTÁVEL

Arquivada/ExtintaInvention PatentPCT · SE1989000176

Application data

Number

PI8906966

Type

Invention Patent

Filing

04/05/1989

Publication

12/18/1990

PCT

SE1989000176

Progress at the INPI

  1. Filing04/05/89
  2. Publication12/18/90
  3. Examination08/04/92
  4. Allowance01/30/96
  5. Grant12/31/96
  6. Expired12/29/09

The letters patent expired on 12/29/2009: 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: 12/29/2009. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

T. E. (pessoa física)

SE

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Inventors

T. A. (pessoa física)

SE

Technical data

IPC Classification

Priority claims

SE

8802076-3 · 06/03/1988

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 05/04/2004

12/29/2009

RPI 2034

Concessão da patente

#16.1

12/31/1996

RPI 1361

Notificação para pagamento de retribuição

#13.1

07/09/1996

RPI 1336

Deferimento

#9.1

01/30/1996

RPI 1313

Solicitação de exame técnico

#4.1

08/04/1992

RPI 1131

Notificação de entrada na fase nacional - PCT

#1.3

12/18/1990

RPI 1046

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