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Official data from INPI

PROCESSO PARA PRODUCAO DE UMA TIRA DE ACO LAMINADO A FRIO QUE TEM EXCELENTE PROCESSABILIDADE, MEDIANTE RECOZIMENTO CONTINUO DE TEMPO CURTO

ConcedidaInvention Patent

Application data

Number

PI8000648

Type

Invention Patent

Filing

02/02/1979

Publication

-

Progress at the INPI

  1. Filing02/02/79
  2. Publication
  3. Examination
  4. Allowance09/02/86
  5. Grant06/02/87
  6. Expired05/16/95

The letters patent expired on 05/16/1995: 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: 06/02/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

NIPPON STEEL CORP

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Inventors

H. O. (pessoa física)

M. A. (pessoa física)

O. A. (pessoa física)

T. Y. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

06/02/1987

RPI 867

Notificação para pagamento de retribuição

#13.1

12/23/1986

RPI 844

Deferimento

#9.1

09/02/1986

RPI 828

Exigência - art. 36 da LPI

#6.1

07/23/1985

RPI 770

Exigência - art. 36 da LPI

#6.1

02/28/1984

RPI 697

Carta-patente expirada

#21.1

05/16/1995

RPI 1276

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