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Official data from INPI

APARELHO PARA CONVERTER UM SINAL BALANCEADO ANALÓGICO EM UM SINAL DIGITAL.

Em AnáliseInvention PatentPCT · SE1987000110

Application data

Number

PI8707252

Type

Invention Patent

Filing

03/05/1987

Publication

04/19/1988

PCT

SE1987000110

Progress at the INPI

  1. Filing03/05/87
  2. Publication04/19/88
  3. Examination11/14/89
  4. Allowance09/13/94
  5. Grant04/25/95
  6. Expired07/29/08

The letters patent expired on 07/29/2008: 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: 11/14/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

T. E. (pessoa física)

SE

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Inventors

T. H. (pessoa física)

SE

Technical data

IPC Classification

Priority claims

SE

8505686-9 · 04/02/1986

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

11/14/1989

RPI 995

Notificação de entrada na fase nacional - PCT

#1.3

04/19/1988

RPI 913

Carta-patente expirada

#21.1

Patente extinta em 05/03/2002

07/29/2008

RPI 1960

Concessão da patente

#16.1

04/25/1995

RPI 1273

Notificação para pagamento de retribuição

#13.1

01/17/1995

RPI 1259

Deferimento

#9.1

09/13/1994

RPI 1241

Exigência - art. 36 da LPI

#6.1

11/03/1993

RPI 1196

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