Official data from INPI

APERFEIÇOAMENTOS INTRODUZIDOS EM ALTO-FALANTES

Em AnáliseInvention Patent

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Application data

Number

PI8605994

Type

Invention Patent

Filing

11/14/1986

Publication

06/21/1988

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Progress at the INPI

Under appeal

Filing11/14/86
Publication06/21/88
Examination09/25/90
Refused10/31/95
Grant
In force

The application was refused by the INPI on 10/31/1995. The invention was never patented.

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Latest action published by the INPI: 07/26/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Gallant Indústria Eletrônica Ltda

SP, BR

Inventors

J. P. (pessoa física)

Technical data

IPC Classification

H04R 11/14

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

14.1

07/26/1988

RPI 927

Publicação do pedido de patente

#3.1

06/21/1988

RPI 922

Pedido de patente depositado

#2.1

04/22/1987

RPI 861

Indeferimento

#9.2

10/31/1995

RPI 1300

Conhecimento de parecer técnico

#7.1

11/29/1994

RPI 1252

Pedido de certificado de adição de invenção

#5.1

02/05/1991

RPI 1053

Solicitação de exame técnico

#4.1

09/25/1990

RPI 1034

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