Official data from INPI

TRANSMISSOR-RECEPTOR DUPLEX DE CANAL COMUM

ConcedidaInvention Patent

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Application data

Number

PI7701542

Type

Invention Patent

Filing

10/09/1976

Publication

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Progress at the INPI

Filing10/09/76
Publication
Examination
Allowance06/01/82
Grant02/22/83
Terminated10/23/90

The patent was granted on 02/22/1983 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: 02/22/1983. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

PLESSEY HANDEL INVESTMENT AG

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Inventors

R. C. (pessoa física)

Technical data

IPC Classification

H04B 1/50

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

02/22/1983

RPI 644

13.3

11/16/1982

RPI 630

Deferimento

#9.1

06/01/1982

RPI 606

Exigência - art. 36 da LPI

#6.1

01/05/1982

RPI 585

Anuidade - prazo legal encerrado

#18.2

10/23/1990

RPI 1038

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