(11) 98705-3426
TrademarkIQ iconTrademarkIQ
Back to search
Official data from INPI

DISPOSITIVO ELETROMAGNETICO E NUCLEO FERROMAGNETICO TENDO SUPERFICIES DE POLO OPOSTAS DEFININDO UMA FOLGA DO TIPO ADAPTADO PARA USO EM UM DISPOSITIVO ELETROMAGNETICO

Em AnáliseInvention Patent

Application data

Number

PI8002617

Type

Invention Patent

Filing

05/18/1983

Publication

-

Progress at the INPI

  1. Filing05/18/83
  2. Publication
  3. Examination01/18/83
  4. Allowance01/03/84
  5. Grant06/26/84
  6. Terminated06/21/88

The patent was granted on 06/26/1984 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: 06/21/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

MINNESOTA MINING & MFG

See this company's full portfolio

Inventors

B. L. (pessoa física)

R. D. (pessoa física)

Technical data

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

06/21/1988

RPI 922

Concessão da patente

#16.1

06/26/1984

RPI 714

Notificação para pagamento de retribuição

#13.1

04/24/1984

RPI 705

Deferimento

#9.1

01/03/1984

RPI 689

Exigência - art. 36 da LPI

#6.1

07/26/1983

RPI 666

Solicitação de exame técnico

#4.1

01/18/1983

RPI 639

Patent monitoring

Track this patent in real time.

Receive alerts on INPI events, decisions, and expiry dates for your portfolio.