Official data from INPI

CIRCUITO DE CONTROLE DE PARTIDA SEQUENCIAL DE MOTORES,ALTERNAVEL,COM CONTROLE TERMOSTATICO DE PARADA SEQUENCIAL ALTERNAVEL E ROTATIVO,COM CONTINUIDADE DE FUNCIONAMENTO

Em AnáliseInvention Patent

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Application data

Number

PI7701627

Type

Invention Patent

Filing

03/17/1977

Publication

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Progress at the INPI

Filing03/17/77
Publication
Examination
Allowance10/13/81
Grant08/31/82
Expired07/27/93

The letters patent expired on 07/27/1993: 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: 09/20/1983. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

HITACHI LINE IND ELETRICA SA

Inventors

P. R. (pessoa física)

Technical data

IPC Classification

H02P 1/00

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

20.7

09/20/1983

RPI 674

20.4

09/13/1983

RPI 673

Concessão da patente

#16.1

08/31/1982

RPI 619

Notificação para pagamento de retribuição

#13.1

03/02/1982

RPI 593

Deferimento

#9.1

10/13/1981

RPI 573

Carta-patente expirada

#21.1

07/27/1993

RPI 1182

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UNIDADE MODULAR DE CONDICIONAMENTO DE AR ESTRUTURA DE SUSTENTACAO E MONTAGEM DE RESFRIADORES DE LIQUIDOS POLIA DUPLA REGULAVEL

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