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Official data from INPI

CIRCUITO MAGNETICO DE EXCITACAO POR CORRENTE CONTINUA OU POR CORRENTE ALTERNADA

ConcedidaInvention Patent

Application data

Number

PI8102169

Type

Invention Patent

Filing

04/10/1980

Publication

10/13/1981

Progress at the INPI

  1. Filing04/10/80
  2. Publication10/13/81
  3. Examination04/19/83
  4. Allowance05/28/85
  5. Grant02/04/86
  6. Terminated08/30/94

The patent was granted on 02/04/1986 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

Talk to a specialist

Latest action published by the INPI: 02/04/1986. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

T. E. (pessoa física)

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Inventors

A. J. (pessoa física)

F. L. (pessoa física)

S. L. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

02/04/1986

RPI 798

Notificação para pagamento de retribuição

#13.1

09/17/1985

RPI 778

Deferimento

#9.1

05/28/1985

RPI 762

Exigência - art. 36 da LPI

#6.1

12/18/1984

RPI 739

Exigência - art. 36 da LPI

#6.1

04/03/1984

RPI 702

Solicitação de exame técnico

#4.1

04/19/1983

RPI 652

Publicação do pedido de patente

#3.1

10/13/1981

RPI 573

Anuidade - prazo legal encerrado

#18.2

08/30/1994

RPI 1239

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