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

PROCESSO DE TRATAMENTO DE METAL FERROSO DERRETIDO PARA PRODUZIR ACO CARBONICO BAIXO

Em AnáliseInvention Patent

Application data

Number

PI7900930

Type

Invention Patent

Filing

02/12/1979

Publication

-

Progress at the INPI

  1. Filing02/12/79
  2. Publication
  3. Examination11/24/81
  4. Allowance11/16/83
  5. Grant05/29/84
  6. Terminated05/17/88

The patent was granted on 05/29/1984 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: 05/17/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

PENNSYLVANIA ENGINEERING CORP

Inventors

S. E. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

05/17/1988

RPI 917

Concessão da patente

#16.1

05/29/1984

RPI 710

Notificação para pagamento de retribuição

#13.1

03/20/1984

RPI 700

Deferimento

#9.1

11/16/1983

RPI 682

Solicitação de exame técnico

#4.1

11/24/1981

RPI 579

Patent monitoring

Track this patent in real time.

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