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Official data from INPI

APARELHO PARA TRATAMENTO DE FERRO GUSA RESIDUAL E ESCORIA SOLIDA REMANESCENTE NA CAIXA DE UM VAGAO-TORPEDO

ConcedidaInvention Patent

Application data

Number

PI7905404

Type

Invention Patent

Filing

02/22/1979

Publication

-

Progress at the INPI

  1. Filing02/22/79
  2. Publication
  3. Examination
  4. Allowance03/27/84
  5. Grant09/25/84
  6. Expired04/18/95

The letters patent expired on 04/18/1995: 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: 09/25/1984. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

KAWASAKI STEEL CO

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Inventors

G. M. (pessoa física)

S. H. (pessoa física)

T. M. (pessoa física)

T. T. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

09/25/1984

RPI 727

Notificação para pagamento de retribuição

#13.1

07/17/1984

RPI 717

Deferimento

#9.1

03/27/1984

RPI 701

Exigência - art. 36 da LPI

#6.1

08/16/1983

RPI 669

6.2

03/01/1983

RPI 645

Carta-patente expirada

#21.1

04/18/1995

RPI 1272

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