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Official data from INPI

ENROLAMENTO DE BOBINA DE COBRE PARA ELETROIMÃS.

ConcedidaInvention Patent

Application data

Number

PI8105554

Type

Invention Patent

Filing

09/01/1981

Publication

04/05/1983

Progress at the INPI

  1. Filing09/01/81
  2. Publication04/05/83
  3. Examination02/21/84
  4. Allowance04/09/85
  5. Grant11/26/85
  6. Terminated03/19/96

The patent was granted on 11/26/1985 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: 11/26/1985. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

C. N. (pessoa física)

RJ, BR

Companhia Siderúrgica Nacional - CSN

RJ, BR

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Inventors

M. R. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

11/26/1985

RPI 788

Notificação para pagamento de retribuição

#13.1

07/30/1985

RPI 771

Deferimento

#9.1

04/09/1985

RPI 755

Exigência - art. 36 da LPI

#6.1

09/25/1984

RPI 727

Solicitação de exame técnico

#4.1

02/21/1984

RPI 696

Publicação do pedido de patente

#3.1

04/05/1983

RPI 650

Pedido de patente depositado

#2.1

10/13/1981

RPI 573

Anuidade - prazo legal encerrado

#18.2

03/19/1996

RPI 1320

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