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Official data from INPI

PROCESSO PARA A COMPENSAÇÀO DA POTÊNCIA REATIVA DE UM FORNO ELECTRO-REDUTOR ACIONADO COM CORRENTE TRIFÁSICA E DISPOSITIVO PARA A REALIZAÇÃO DO PROCESSO

ConcedidaInvention Patent

Application data

Number

PI8006159

Type

Invention Patent

Filing

09/25/1980

Publication

-

Progress at the INPI

  1. Filing09/25/80
  2. Publication
  3. Examination07/12/83
  4. Allowance01/31/84
  5. Grant08/28/84
  6. Expired11/07/95

The letters patent expired on 11/07/1995: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

Talk to a specialist

Latest action published by the INPI: 08/28/1984. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

M. D. (pessoa física)

AG

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Inventors

K. H. (pessoa física)

S. H. (pessoa física)

Technical data

IPC Classification

Priority claims

DE

P 29 38 841.8 · 09/26/1979

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

08/28/1984

RPI 723

Notificação para pagamento de retribuição

#13.1

05/15/1984

RPI 708

Deferimento

#9.1

01/31/1984

RPI 693

Solicitação de exame técnico

#4.1

07/12/1983

RPI 664

Carta-patente expirada

#21.1

11/07/1995

RPI 1301

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