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Official data from INPI

PROCESSO PARA RECOZIMENTO CONTINUO DE UMA TIRA DE ACO DE BAIXO TEOR DE CARBONO,LAMINADA A FRIO

ConcedidaInvention Patent

Application data

Number

PI8002564

Type

Invention Patent

Filing

12/05/1979

Publication

-

Progress at the INPI

  1. Filing12/05/79
  2. Publication
  3. Examination
  4. Allowance07/10/84
  5. Grant01/29/85
  6. Expired06/13/95

The letters patent expired on 06/13/1995: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

Talk to a specialist

Latest action published by the INPI: 01/29/1985. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

NIPPON STEEL CORP [JP]

Inventors

H. N. (pessoa física)

H. N. (pessoa física)

T. S. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

01/29/1985

RPI 745

Notificação para pagamento de retribuição

#13.1

10/23/1984

RPI 731

Deferimento

#9.1

07/10/1984

RPI 716

Exigência - art. 36 da LPI

#6.1

11/16/1983

RPI 682

Carta-patente expirada

#21.1

06/13/1995

RPI 1280

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