Official data from INPI

APERFEICOAMENTO EM DISPOSITIVO DE LIGACAO E DESLIGAMENTO AUTOMATICO DE CIRCUITOS ELETRICOS

Em AnáliseInvention Patent

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Application data

Number

PI7603483

Type

Invention Patent

Filing

06/01/1976

Publication

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Progress at the INPI

Filing06/01/76
Publication
Examination
Allowance
Grant12/29/81
Terminated09/18/90

The patent was granted on 12/29/1981 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: 08/12/1986. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

IMEL LTDA

Inventors

E. A. (pessoa física)

Technical data

IPC Classification

H01H 29/28 H01H 37/36

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

20.7

08/12/1986

RPI 825

20.4

07/29/1986

RPI 823

Concessão da patente

#16.1

12/29/1981

RPI 584

Notificação para pagamento de retribuição

#13.1

11/10/1981

RPI 577

Anuidade - prazo legal encerrado

#18.2

09/18/1990

RPI 1033

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