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Official data from INPI

Amplificador bifilar, amplificador bifilar-tetrafilar ou circuito tetrafilar com amplificação.

Em AnáliseInvention Patent

Application data

Number

PI8602752

Type

Invention Patent

Filing

06/12/1986

Publication

02/10/1987

Progress at the INPI

Awaiting grant fee payment
  1. Filing06/12/86
  2. Publication02/10/87
  3. Examination03/28/89
  4. Allowance03/05/91
  5. Grant
  6. In force

The application was allowed by the INPI on 03/05/1991. The grant of the letters patent is being processed.

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Latest action published by the INPI: 03/28/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

S. A. (pessoa física)

DE

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Inventors

G. R. (pessoa física)

Technical data

IPC Classification

Priority claims

DE

P 35 21 263.2 · 06/13/1985

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

03/28/1989

RPI 962

Publicação do pedido de patente

#3.1

02/10/1987

RPI 851

Pedido de patente depositado

#2.1

12/23/1986

RPI 844

Retificação

#15.3

06/25/1991

RPI 1073

Deferimento

#9.1

03/05/1991

RPI 1057

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