Official data from INPI

AMPLIFICADOR DE SINAIS PARA RADIO DIFUSÃO RECEPÇÃO

ConcedidaUtility Model

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Application data

Number

MU6500270

Type

Utility Model

Filing

03/12/1985

Publication

10/21/1986

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Progress at the INPI

Filing03/12/85
Publication10/21/86
Examination02/10/87
Allowance11/10/87
Grant06/28/88
Expired05/09/95

The letters patent expired on 05/09/1995: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

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Latest action published by the INPI: 06/28/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

T. S. (pessoa física)

RJ, BR

Inventors

T. S. (pessoa física)

Technical data

IPC Classification

H01Q 3/28

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

06/28/1988

RPI 923

Notificação para pagamento de retribuição

#13.1

03/01/1988

RPI 906

Deferimento

#9.1

11/10/1987

RPI 890

Solicitação de exame técnico

#4.1

02/10/1987

RPI 851

Publicação do pedido de patente

#3.1

10/21/1986

RPI 835

Pedido de patente depositado

#2.1

05/21/1985

RPI 761

Carta-patente expirada

#21.1

05/09/1995

RPI 1275

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RECEPTOR PARA SINAIS DE AUDIO

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