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Official data from INPI

GABINETE ACÚSTICO COM ESTRUTURA PARA OBTENÇÃO DE MELHORES RESPOSTAS EM BAIXA FREQUÊNCIA.

Em AnáliseInvention Patent
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Application data

Number

PI8501776

Type

Invention Patent

Filing

04/11/1985

Publication

12/09/1986
View on INPI

Progress at the INPI

  1. Filing04/11/85
  2. Publication12/09/86
  3. Examination03/04/87
  4. Allowance
  5. Grant
  6. In force

Published on 12/09/1986, the application is awaiting technical examination at the INPI, which decides whether the invention meets the patentability requirements.

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Latest action published by the INPI: 03/04/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

F. S. (pessoa física)

SP, BR

Inventors

F. S. (pessoa física)

Technical data

IPC Classification

H04R 1/02

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

03/04/1987

RPI 854

Publicação do pedido de patente

#3.1

12/09/1986

RPI 842

Pedido de patente depositado

#2.1

07/02/1985

RPI 767

Retificação

#15.3

08/28/1990

RPI 1030

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