Official data from INPI

DETECTOR DE ENVOLVENTE PARA RECEBER SINAL PORTADOR DE AMPLITUDE MODULADA

ConcedidaInvention Patent

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Application data

Number

PI8205084

Type

Invention Patent

Filing

08/31/1981

Publication

08/09/1983

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Progress at the INPI

Filing08/31/81
Publication08/09/83
Examination09/17/85
Allowance06/09/87
Grant03/29/88
Terminated02/11/92

The patent was granted on 03/29/1988 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

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Latest action published by the INPI: 03/29/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

KAHN LEONARD R [US]

Inventors

K. [. (pessoa física)

Technical data

IPC Classification

H04B 1/26

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

03/29/1988

RPI 910

Notificação para pagamento de retribuição

#13.1

09/29/1987

RPI 884

Deferimento

#9.1

06/09/1987

RPI 868

Exigência - art. 36 da LPI

#6.1

08/26/1986

RPI 827

Solicitação de exame técnico

#4.1

09/17/1985

RPI 778

Publicação do pedido de patente

#3.1

08/09/1983

RPI 668

Pedido de patente depositado

#2.1

10/19/1982

RPI 626

Anuidade - prazo legal encerrado

#18.2

02/11/1992

RPI 1106

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