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Official data from INPI

PROCESSO DE FABRICACAO DE,NO MINIMO,UM DIODO OU TIRISTOR PELA ADAPTACAO DA CARGA DE RECUPERACAO DE,NO MINIMO,UM ORIGINAL DE UM DIODO DE JUNCAO OU UM CORPO SEMICONDUTOR DE TIRISTOR

ConcedidaInvention Patent

Application data

Number

PI7702975

Type

Invention Patent

Filing

05/17/1976

Publication

-

Progress at the INPI

  1. Filing05/17/76
  2. Publication
  3. Examination
  4. Allowance04/12/83
  5. Grant09/27/83
  6. Terminated08/28/90

The patent was granted on 09/27/1983 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: 09/27/1983. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

WESTINGHOUSE ELECTRIC CORP

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Inventors

B. J. (pessoa física)

J. J. (pessoa física)

T. K. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

09/27/1983

RPI 675

Notificação para pagamento de retribuição

#13.1

08/30/1983

RPI 671

Deferimento

#9.1

04/12/1983

RPI 651

Anuidade - prazo legal encerrado

#18.2

08/28/1990

RPI 1030

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