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Official data from INPI

QUADRO DE COMUTACAO ENCOBERTO

ConcedidaInvention Patent
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Application data

Number

PI8003841

Type

Invention Patent

Filing

06/22/1979

Publication

-
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Progress at the INPI

  1. Filing06/22/79
  2. Publication
  3. Examination02/01/83
  4. Allowance07/10/84
  5. Grant01/29/85
  6. Terminated09/25/90

The patent was granted on 01/29/1985 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: 01/29/1985. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

TOKYO SHIBAURA ELECTRIC CO

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Inventors

M. T. (pessoa física)

M. O. (pessoa física)

S. H. (pessoa física)

Technical data

IPC Classification

H02B 1/02H02B 1/20

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

01/29/1985

RPI 745

Notificação para pagamento de retribuição

#13.1

10/23/1984

RPI 731

Deferimento

#9.1

07/10/1984

RPI 716

Exigência - art. 36 da LPI

#6.1

01/24/1984

RPI 692

Exigência - art. 36 da LPI

#6.1

08/23/1983

RPI 670

Solicitação de exame técnico

#4.1

02/01/1983

RPI 641

Anuidade - prazo legal encerrado

#18.2

09/25/1990

RPI 1034

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