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Official data from INPI

CIRCUITO COMPARADOR E MODULADOR, E GERADOR DE SINAIS QUE OS INCORPORA

ConcedidaInvention Patent

Application data

Number

PI8404597

Type

Invention Patent

Filing

09/14/1984

Publication

08/06/1985

Progress at the INPI

  1. Filing09/14/84
  2. Publication08/06/85
  3. Examination12/02/86
  4. Allowance12/06/88
  5. Grant09/26/89
  6. Expired07/08/08

The letters patent expired on 07/08/2008: 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: 09/26/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Alcatel N.V.

NL

See this company's full portfolio

Inventors

D. H. (pessoa física)

BE

D. R. (pessoa física)

BE

Technical data

IPC Classification

Priority claims

BE

2/60307 · 09/19/1983

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

09/26/1989

RPI 988

Notificação para pagamento de retribuição

#13.1

04/25/1989

RPI 966

Deferimento

#9.1

12/06/1988

RPI 946

Exigência - art. 36 da LPI

#6.1

05/31/1988

RPI 919

14.1

11/17/1987

RPI 891

Solicitação de exame técnico

#4.1

12/02/1986

RPI 841

Publicação do pedido de patente

#3.1

08/06/1985

RPI 772

Pedido de patente depositado

#2.1

11/20/1984

RPI 735

Carta-patente expirada

#21.1

Patente extinta em 14/09/99

07/08/2008

RPI 1957

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