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Official data from INPI

PROCESSO PARA RESFRIAMENTO DE FERRO REDUZIDO A ALTA TEMPERATURA

Em AnáliseInvention Patent

Application data

Number

PI7803341

Type

Invention Patent

Filing

09/07/1977

Publication

-

Progress at the INPI

  1. Filing09/07/77
  2. Publication
  3. Examination
  4. Allowance06/22/82
  5. Grant01/25/83
  6. Terminated05/17/88

The patent was granted on 01/25/1983 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: 05/17/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

NIPPON STEEL CORP

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Inventors

N. T. (pessoa física)

O. K. (pessoa física)

W. T. (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

Conhecimento de parecer técnico

#7.1

03/07/1984

RPI 698

Concessão da patente

#16.1

01/25/1983

RPI 640

Notificação para pagamento de retribuição

#13.1

10/05/1982

RPI 624

Deferimento

#9.1

06/22/1982

RPI 609

6.2

12/15/1981

RPI 582

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