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Official data from INPI

DISPOSIÇÃO DE CIRCUITO PARA A SEPARAÇÃO DE COMPONENTES DE SINAIS DE CORRENTE CONTINUA E DE CORRENTE ALTERNADA DE UM SINAL COMPOSTO.

Em AnáliseInvention Patent

Application data

Number

PI8602975

Type

Invention Patent

Filing

06/26/1986

Publication

02/17/1987

Progress at the INPI

  1. Filing06/26/86
  2. Publication02/17/87
  3. Examination05/23/89
  4. Allowance08/24/93
  5. Grant04/26/94
  6. Terminated10/03/95

The patent was granted on 04/26/1994 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

Talk to a specialist

Latest action published by the INPI: 05/23/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

S. A. (pessoa física)

DE

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Inventors

D. R. (pessoa física)

DE

H. S. (pessoa física)

DE

Technical data

IPC Classification

Priority claims

DE

P 35 23 045.2 · 06/27/1985

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

05/23/1989

RPI 970

Publicação do pedido de patente

#3.1

02/17/1987

RPI 852

Pedido de patente depositado

#2.1

12/30/1986

RPI 845

Anuidade - prazo legal encerrado

#18.2

10/03/1995

RPI 1296

Concessão da patente

#16.1

04/26/1994

RPI 1221

Deferimento

#9.1

08/24/1993

RPI 1186

Republicação - classificação IPC

#15.11

06/01/1993

RPI 1174

Exigência - art. 36 da LPI

#6.1

12/08/1992

RPI 1149

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