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Official data from INPI

RECIPIENTE METALURGICO E PROCESSO PARA TRATAR UM METAL FERROSO DERRETIDO

Em AnáliseInvention Patent

Application data

Number

PI7904574

Type

Invention Patent

Filing

07/17/1978

Publication

-

Progress at the INPI

  1. Filing07/17/78
  2. Publication
  3. Examination12/01/81
  4. Allowance11/01/83
  5. Grant04/24/84
  6. Terminated07/12/88

The patent was granted on 04/24/1984 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: 07/12/1988. 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

07/12/1988

RPI 925

Concessão da patente

#16.1

04/24/1984

RPI 705

Notificação para pagamento de retribuição

#13.1

02/14/1984

RPI 695

Deferimento

#9.1

11/01/1983

RPI 680

Solicitação de exame técnico

#4.1

12/01/1981

RPI 580

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