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Official data from INPI

APARELHO LIGADO A UM SISTEMA ELETRICO DE CORRENTE ALTERNADA E PROCESSO PARA FORNECER POTENCIA REATIVA PRE-DETERMINADA ENTRE DOIS CONDUTORES DO SISTEMA

Em AnáliseInvention Patent

Application data

Number

PI7901003

Type

Invention Patent

Filing

02/23/1978

Publication

-

Progress at the INPI

  1. Filing02/23/78
  2. Publication
  3. Examination10/13/81
  4. Allowance11/16/82
  5. Grant05/31/83
  6. Terminated06/14/88

The patent was granted on 05/31/1983 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: 06/14/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

WESTINGHOUSE ELECTRIC CORP

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Inventors

B. M. (pessoa física)

G. L. (pessoa física)

P. T. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

06/14/1988

RPI 921

Concessão da patente

#16.1

05/31/1983

RPI 658

Notificação para pagamento de retribuição

#13.1

03/22/1983

RPI 648

Deferimento

#9.1

11/16/1982

RPI 630

Exigência - art. 36 da LPI

#6.1

05/18/1982

RPI 604

Solicitação de exame técnico

#4.1

10/13/1981

RPI 573

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