Official data from INPI

Disposição introduzida em caixa acústica.

IndeferidaUtility Model

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Application data

Number

MU6301098

Type

Utility Model

Filing

08/01/1983

Publication

03/12/1985

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Progress at the INPI

Under appeal

Filing08/01/83
Publication03/12/85
Examination04/07/87
Refused01/19/88
Grant
In force

The application was refused by the INPI on 01/19/1988. The invention was never patented.

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Latest action published by the INPI: 01/19/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Yoshitani Produtos Eletrônicos ltda

Inventors

Y. M. (pessoa física)

Technical data

IPC Classification

H04R 1/02

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Indeferimento

#9.2

01/19/1988

RPI 900

Solicitação de exame técnico

#4.1

04/07/1987

RPI 859

Publicação do pedido de patente

#3.1

03/12/1985

RPI 751

Pedido de patente depositado

#2.1

10/11/1983

RPI 677

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